the equation for the area of a circle is π(pi)r² so pi times radius squared. the side length of the square will be your diameter, so divide that by 2 to get the radius and plug that into your formula, and you will have the are of the circle. hope that helped.
perimeter = circumference
Area of the square = 10x10=100 in^2 Area of Circle=pi/4*10^2 ~=78.539817 in^2 Area between them is the area of the square minus the area of the circle: 100-78.539817 ~=21.46 in^2
452.389 square miles this is assuming he can see in every direction. it can be thought of like a circle, where the fire tower is the center of a circle with a radius of 12 miles. he can see everywhere inside this circle making his vision the area of the circle. an area of a circle is A=pi*r2
A circle with a diameter of 1 metre has an area of pi/4 square metres.
To find the area of a circle, the formula is pi*r2, and the circumference is 2pi*r Now plug in the information given. Circumference is 50pi. 50pi = 2pi*r Divide both sides by pi. 50=2*r Divide both sides by 2. 25 = r The radius equals 25. Now to find the area, using pi*r2. We know the radius is 25. pi*(25)2 Find the square of 25. pi*625 The area of the circle is 625pi square units (about 1963.5 square units)
Use the formula for the area of a circle: area = pi x radius2. Then convert square miles to acres.
You find the area of the whole square first. Then you find the area of the circle inside of it And then subtract the area of the circle from the area of the square and then you get the shaded area of the square
all you do is find the area of the circle... if you mean find the squares area, find the area of the circle, and then the square's area and subtract the squares area to the circles area
You add the area of the square with the area of the semi circle.
It means that if you take a circle and find its area, you must now find a square with the same area. We cannot square the circle.
If yo have the area of the circle, the square is irrelevant. Radius = sqrt(Area/pi)
Area of a circle in square meters = pi times radius squared
Area of a circle = pi*radius2 The radius of the circle will be 1/2 the size of the length of a side of the square.
By using the formula: area of circle = pi*radius2
Do you know how to find the area of a circle when you know the radius ? Good! Do that. Do you know how to find the area of a square when you know the length of the side ? Good! Do that. Now you have two numbers ... the area of the circle and the area of the square. The problem wants you to find the difference of these two numbers. Do you know how to use subtraction to find the difference of two numbers ? Good! Do that.
Yes
Area of circle = 78.54 sq cm => Radius of circle = 5 cm => Diameter of circle = 10 cm => Side of square = 10cm => Area of square = 100cm2
Find the total area of the square: length times height. Next, find the total area of the circle: Pi times radius to the second power, or Pi(r squared). If you are doing this by hand, 3.14 is usually acceptable for Pi. Once you have the are of both the square and the circle (the area of the circle should be smaller than that of the square), subtract the area of the circle from the area of the square. The difference is the area of those extra corners of the square that the circle does not occupy. It is actually quite simple. This demonstrates the danger of thinking in words rather than pictures.