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Consider a circle of radius r. You want a square inside of that circle.
The diameter of the circle is 2r and this is also the length of the diagonal of the square.
Now the Pythagorean theorem says that if the side of the square inside the circle is of length s.
2s2 =4r2
this come for a2 +b2 =c2
where a and b are s and c is 2r
so we have s2 =2r2
Then length of the side OS the square is
r(square root of 2)
or s=r(square root of 2)
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What is the square of an egg?
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What equation can be used to find the area in square inches of a circle with a radius of 8 inches?
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Two of the endpoints of the diameter of a circle are at A -6 and 8 and B 6 and -8 1. determine the radius of the circle 2. state an equation of the circle I appreciate the help.?
dinosaurs
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C=2 pi R
Determine the square feet in a circle?
The formula for the area of a circle is pi x radius x radius or pi(r2).
How do you figure square feet using a circumference?
Square feet are a measure of area, and the area of a circle is usually given by the equation: a = πr2 The circumference of a circle is given with the equation: c = 2πr To find the area of the circle given only it's circumference, we can rearrange the circumference equation, solving it for r, and then substituting it into our radius equation in place of r. c = 2πr r = c / 2π a = πr2 a = π(c / 2π)2 a = πc2 / 4π2 a = c2/π So the area of a circle is equal to the square of it's circumference divided by pi.
How do you determine square feet of a circle?
Measure its radius in feet or derive it from the diameter or circumference. A circle with radius r feet has an area of pi*r^2 square feet.
