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What is the diameter of a circle with radius of 7 inches step by step?
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∙ 11y ago
14inches
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∙ 11y ago
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Steps to finding the area of a circle?
1. Measure the radius and multiply it by itself (square it) 2. Multiply Pi (3.14159....) with answer of step 1. That will be the area. Area of circle = Pi x radius2 Radius = Half the diameter of the circle.
Which is the formula to calculate area for a circle with diameter 64 miles?
The area of a circle is calculated by multiplying the square of its radius by pi and can thus be represented with the equation: A = πr^2 where A= area and r=radius. The radius of a circle is equal to half its diameter. Consequently the first step to answering this question would be calculating the radius of the circle. r= d/2 = 64/2 =32 miles This means that the formula to calculate the area for a circle with a diameter of 64 miles would be: A = π(32^2) Working this through would give us: A = π(32^2) = 1024 π = 3216.99 square miles (2 d.p.)
Which is the formula to calculate area for a circle with diameter of 68 miles?
The area of a circle is calculated by multiplying the square of its radius by pi and can thus be represented with the equation: A = πr^2 where A= area and r=radius. The radius of a circle is equal to half its diameter. Consequently the first step to answering this question would be calculating the radius of the circle. r= d/2 = 68/2 =34 miles This means that the formula to calculate the area for a circle with a diameter of 68 miles would be: A = π(34^2) Working this through would give us: A = π(34^2) = 1156 π = 3631.68 square miles (2 d.p.)
How do you get the radius from the area of a circle?
Step 1: Measure the center point of the circle Step 2: Draw a STRAIGHT line from the center point to the edge of circle (this can be anywhere) Step 3: The length between the center point and the circle itself is your radius. An easier way to measure this is measuring the length or width from your circle and divide it by 2.
What is per meter volume of 8 inches diameter?
When dealing with volume this should make you think about 3-dimensional objects. Objects like spheres, prisms, pyramids with their 2-dimensional counterparts being circles and various polygonal shapes. The 3-dimensional object in your question is a sphere. Since you mentioned diameter that automatically means you are dealing with a circle in 3-dimensionals which is a sphere. You are given the diameter to equal 8 inches. You need your answer in meters. You first step is to convert inches to meters. When converted 8 inches equals 0.2032 meters. Now currently you only have the diameter of the sphere which is 0.2032 meters. To find the volume you need to use the formula four thirds pi radius cubed. This is the formula written algebraically... Vsphere = (4/3) x (3.14159) x r3 The radius is equal to half of the diameter... therefore your radius is equal to 0.1016 meters. just plug that into your equation and you have your per meter volume. Vsphere = (4/3) x (3.14159) x (0.1016)3 vsphere = 0.00439 m3
Steps to finding the area of a circle?
1. Measure the radius and multiply it by itself (square it) 2. Multiply Pi (3.14159....) with answer of step 1. That will be the area. Area of circle = Pi x radius2 Radius = Half the diameter of the circle.
How do you find the area of a circle if you know the circumference?
Circumference = pi x diameter = pi x 2 x Radius (By definition - Step 1) So Radius = (Circumference)/(pi x 2), (find Radius - Step 2) Area = pi x Radius x Radius, (substitute value or radius obtained in step 2)
How do you find the area of a circle that has no diameter?
The circle must have a diameter, so maybe your teacher just didn't tell you the diameter. In order to figure out the question, you need to know some information about the circle. Weather it's the radius, circumference, or diameter. So here's how you find area if you only have each of the three: 1. If you just have the radius, then square the radius. This means multiply radius times radius. Or say the radius is 4. Squaring it is 4 times 4. So once you find out the answer for radius squared, multiply radius squared by pi. (Probably use 3.14 for pi) Then there's your area. 2. If you only have the circumference of a circle, then you need to find the radius. In order to do that, you need to find the diameter. To find the diameter of a circle, you take the circumference and divide it by pi. (3.14) then you have your diameter. Since the radius is half the diameter, divide the diameter by 2. Then, once you find the radius, you may look at step 1 and use those steps to find out the area. Since your question is wondering how to find the area without knowing the diameter, then you can multiply the radius by 2 to find out the diameter. Even though you don't need to know the diameter to find the area. You just do (r times r) times pi (3.14)
How many square inches are in a 16 inch diameter circle?
To do this, you first find the radius of the circle. To do this, you divide 16 by pi, which gives 5.09 (to two decimal places). Half of this gives you the radius - around 2.55. You then square the radius, in this case giving approximately 6.48, and multiply it by two, which yields the answer of roughly 12.97. There's your answer - 12.97 inches squared (to two decimal places). N.B. These averages may seem slightly off, but I did the calculations on a calculator, simplifying each step.
Which is the formula to calculate area for a circle with diameter 64 miles?
The area of a circle is calculated by multiplying the square of its radius by pi and can thus be represented with the equation: A = πr^2 where A= area and r=radius. The radius of a circle is equal to half its diameter. Consequently the first step to answering this question would be calculating the radius of the circle. r= d/2 = 64/2 =32 miles This means that the formula to calculate the area for a circle with a diameter of 64 miles would be: A = π(32^2) Working this through would give us: A = π(32^2) = 1024 π = 3216.99 square miles (2 d.p.)
Which is the formula to calculate area for a circle with diameter of 68 miles?
The area of a circle is calculated by multiplying the square of its radius by pi and can thus be represented with the equation: A = πr^2 where A= area and r=radius. The radius of a circle is equal to half its diameter. Consequently the first step to answering this question would be calculating the radius of the circle. r= d/2 = 68/2 =34 miles This means that the formula to calculate the area for a circle with a diameter of 68 miles would be: A = π(34^2) Working this through would give us: A = π(34^2) = 1156 π = 3631.68 square miles (2 d.p.)
How do you calculate diameter size?
Circle Definition:A circle is the set of all points in a plane at a fixed distance, called the radius, from a given point, the center.Circle Formula:Area of Circle = πr²Diameter of Circle = 2rCircumference of Circle = 2πr = πdArea of Sector = πr²(θ/360)wherer = radiusCircle Example:Case 1: Find the area, diameter, and circumference of a circle with the given radius 3.Step 1: Find the area.Area = πr² = 3.14 * 3² = 3.14 * 9 = 28.26.Step 2: Find the diameter.Diameter = 2r = 2 * 3 = 6.Step 3: Find the circumference.Circumference = πd = 3.14 * 6 = 18.84.Case 2: Find the area of sector with the given radius 3 and theta 30.Step 1: Find the area.Area =πr²(θ/360) = 3.14 * 3² * (30/360) = 3.14 * 9 * 0.083 = 2.35.The above example will clearly illustrates how to calculate the Area, Diameter and Circumference of a Circle, Area of Sector manually.
How do you get the radius from the area of a circle?
Step 1: Measure the center point of the circle Step 2: Draw a STRAIGHT line from the center point to the edge of circle (this can be anywhere) Step 3: The length between the center point and the circle itself is your radius. An easier way to measure this is measuring the length or width from your circle and divide it by 2.
What is the diameter of 84?
This is missing some information. For instance, it does not say what 84 is. Is it the radius, the circumference? See the link below for a step by step guide to finding a diameter.
How do you find circumfrenece when there is area?
If you are referring to a circle, calculate the radius as an intermediate step. Area of a circle = pi x radius2 (replace the value for area, and solve for radius). Circumference of a circle = 2 x pi x radius (once you have figured out the radius, use this formula).
How do you get the cubic feet volume of a ball?
The diameter of a basketball is about 9.5 inches. Find the volume of air inside it in cubic centimeters .Neglect the thickness of the ball.(Note:1in=2.54cm) Step 1. Let D=diameter of basketball, then radius r is D/2 or r=4.75 inches Step 2. Volume of Sphere is Step 3.
How do you use pi to find a circle's dimensions?
Pi is defined as the ratio of the circumference of a circle to the diameter of the circle.Therefore, if you measure the diameter of the circle (call it 'D') then the circumference of the circle is pi times D.To find the area of the circle use the formula Area = pi* D2 /4 .Going one step further, to a sphere, if you measure the radius of the sphere (call it R, where R is half the diameter D), then:1) The surface area of the sphere is Area = 4 * pi * R2 .2) The volume of the sphere is Volume = (4/3) * pi * R3 .
