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What is the area of a circle using 3.14 or PI with a circumference of 18.84m?
A circle's area can be found using the equation π*r^2 (radius squared) and the circumference of a circle is 2πr. In order to find the area, then, we need to find the radius first: We will use 3.14 as the value of pi to keep the math a little more simple. 2πr=18.84 (given from the initial question) πr=9.42 r=3 Then, we plug that back into the area equation: π(r^2)= π(3^2)= π*9=28.26
What is pie in circle?
Firstly the word is pi. It is a Greek letter. In mathematics it is often useful to use letters to represent something unknown. We often use the letter x or the letter n to do so. In certain special cases we keep a letter and that represents something so we all know what we are referring to. In this case, pi. Pi refers to the ratio of the diameter of a circle to its circumference. It is always the same. No matter what size the circle the diameter will always be a certain size compared to the circumference. It is often useful to keep and use such letters and phrases. It is a kind of shorthand for people that use mathematics.
How would you find an oval with the same area of a circle?
An oval is a general word that could have different shapes. If you squash a circle evenly, the new shape in math is called an ellipse, which has an oval shape. The formula for the area of a circle is Pi times the Radius of the circle squared. The radius is half the height of the circle and also half the width of the circle. The general formula for the area of an ellipse is Pi times half the height times half the width. So we say length A is half the height of an ellipse and length B is half the width of an ellipse. When A is equal to B you have a circle. When they are different you have an ellipse. So if you want the area of the circle to be the same as the area of the ellipse, then you have to keep the height times the width the same for the ellipse as it was for the circle. As you squash the ellipse further the width must stretch out more than the height gets pushed down. For example, a circle with radius of 1 inch would have the same area as an ellipse with height ½ inch and width 2 inches because 1 times 1 is equal to ½ times 2. Another ellipse with the same area could have height ¼ inch and width 4 inches.
Units for area of a circle?
The unit can be anything...just make sure to label exactly what the question specifies. It could be centimeters, inches, etc. Also keep in mind for area it is the unit squared. So, for example, if the area was 40 cm, you would put 40 cm2 as your answer.
What is the formula for measuring the cylinder volume of unequal circles?
It's a frustum! to find the area of this figure you need to take the area of the entire cone and subtract the area of the mini cone. Let me explain.If you keep extending thesideofthe figure into the direction of the smaller circle, it creates a cone, right? so take volume (1/3 area of base * height) of the entire extended cone (whose base is the bigger circle to the vertex). Then take the volume of the top cone(whose base is the small circle to the vertex). Subtract the small one from the big one, and it gives you the area of the frustum.
Why is not possible to draw a circle with a circumference of 100cm?
It is possible. Just keep the drawing instrument 15.915 cm from a set point (the circle's center).
What is the area of a circle using 3.14 or PI with a circumference of 18.84m?
A circle's area can be found using the equation π*r^2 (radius squared) and the circumference of a circle is 2πr. In order to find the area, then, we need to find the radius first: We will use 3.14 as the value of pi to keep the math a little more simple. 2πr=18.84 (given from the initial question) πr=9.42 r=3 Then, we plug that back into the area equation: π(r^2)= π(3^2)= π*9=28.26
What is circumference of a circle with a diameter of 65 cm?
The circumference of a circle can be calculated using the formula C = πd, where C is the circumference, π is a constant approximately equal to 3.14159, and d is the diameter of the circle. Given a diameter of 65 cm, the circumference would be C = π(65) = 65π cm, which is approximately 204.203 cm.
What is the circumference of a circle with diameter of 45 centimeters?
Oh, dude, you're hitting me with some math now? Alright, let's keep it chill. The circumference of a circle is just π times the diameter, so for a diameter of 45 centimeters, the circumference would be 45π centimeters. Easy peasy, right? Like, who even uses circles in real life anyway?
What is the area of 12 foot circle?
Assuming that the Diameter is 12 foot the radius would be 6 foot. So Area of a circle is found by Pi*r² So: 3.14 * 6² = 113.04ft² In conclusion: The area of a 12 foot circle would be 113.04ft² - To keep with significant figures the answer would be: 113ft²
What is pie in circle?
Firstly the word is pi. It is a Greek letter. In mathematics it is often useful to use letters to represent something unknown. We often use the letter x or the letter n to do so. In certain special cases we keep a letter and that represents something so we all know what we are referring to. In this case, pi. Pi refers to the ratio of the diameter of a circle to its circumference. It is always the same. No matter what size the circle the diameter will always be a certain size compared to the circumference. It is often useful to keep and use such letters and phrases. It is a kind of shorthand for people that use mathematics.
Write a c plus plus program to find the area of circle?
#include<stdio.h> void main() { int r; int pi=3.14; float cir,area; printf("/n enter the radius of the circle"); scanf("%d",&r); cir=2*pi*r; area=pi*r*r; printf("the circumference of the circle is%d",cir); printf('the area of the circle is %d",area); }
How do you draw a tangent to a circle from a point on its circumference?
Short instructions:Construct the diameter of the circle at the tangent point Construct a line at right angles to the diameter at the tangent point. this is a tangent to the circle at that point.Detailed instructions with compass and straight edge:Given: circle C with a point T on the circumference Sought: Tangent to C at TFind the center circle CPlace the needle of the compass on the (circumference of) circle C (anywhere), draw a circle [circle 1] (I think circle 1 has to be smaller than twice the diameter of circle C).Without changing the compass size, place the needle of the compass on the intersection of circles C and circle 1, draw a circle (circle 2)Without changing the compass size, place the needle of the compass on the other intersection of circles C and circle 1, draw a circle (circle 3)Connect the intersections of circle 1 and circle 2 (one is outside and one inside circle A) this we call [ line 1]Connect the intersections of circle 2 and circle 3 (also here one is outside and one inside C) [line 2]The intersection of line 1 and Line 2 is [O]. This is the center of circle CDraw a line [line 3] from [O] through [T] and beyondConstruct the diameter of the circle at [T] (the point for the tangent) and extend it beyond the circumference of circle C With your compass needle at [T] mark off equal distances on [line 3] inside and outside circle C. We call these points [4] & [5]Increase the compass size somewhat and with the needle at [4] draw a circle [circle 4]Without changing the compass draw [circle 5] centered on [5]Construct a line perpendicular to line 3 at [T]The line through the intersections of circle 4 and circle 5 is the sought tangent at [T]Note: although the instructions say "draw a circle" often it is sufficient to just mark a short arc of the circle at the appropriate place. This will keep the drawing cleaner and easier to interpret.
Did you exert a force to keep the stone moving in a circle?
Yes, to keep an object moving in a circle, a force must be exerted towards the center of the circle. This is known as centripetal force.
How do you divide a circle into 20 equal parts?
Well, sweetheart, to divide a circle into 20 equal parts, you simply start by drawing a vertical line through the center, then draw another line at 18 degrees from the first line, and keep going at 18-degree intervals until you've got yourself 20 equal slices of that circle. Easy as pie... or should I say, easy as circle?
What is the diameter if the circumference if 6 inches?
To find the diameter of a circle when given the circumference, you can use the formula: circumference = π * diameter. Given that the circumference is 6 inches, you can plug this value into the formula: 6 = π * diameter. To solve for the diameter, you divide both sides by π, resulting in diameter = 6 / π ≈ 1.91 inches.
How would you find an oval with the same area of a circle?
An oval is a general word that could have different shapes. If you squash a circle evenly, the new shape in math is called an ellipse, which has an oval shape. The formula for the area of a circle is Pi times the Radius of the circle squared. The radius is half the height of the circle and also half the width of the circle. The general formula for the area of an ellipse is Pi times half the height times half the width. So we say length A is half the height of an ellipse and length B is half the width of an ellipse. When A is equal to B you have a circle. When they are different you have an ellipse. So if you want the area of the circle to be the same as the area of the ellipse, then you have to keep the height times the width the same for the ellipse as it was for the circle. As you squash the ellipse further the width must stretch out more than the height gets pushed down. For example, a circle with radius of 1 inch would have the same area as an ellipse with height ½ inch and width 2 inches because 1 times 1 is equal to ½ times 2. Another ellipse with the same area could have height ¼ inch and width 4 inches.
