How many square feet in a 42 inch diameter circle?

Answer 1

134

Answer 2

The radius of the circle is 21 inches. The area of the circle is (pi) times (radius squared) = pi times 441 = 1,385.44+ square inches. 1 square foot = 144 square inches. The area of the circle is (1385.44+ square inches) divided by 144 = 9.621 square feet (rounded to 3 decimal places).

Answer 3

Well, let's imagine that circle as a happy little friend on our canvas. To find the square footage, we first need to find the radius by dividing the diameter by 2. So, with a 42-inch diameter, the radius would be 21 inches. Then we can use the formula for the area of a circle, which is π times the radius squared. Just remember, there are about 0.00595 square feet in one square inch, so you can use that to convert your final answer.

Answer 4

Oh, dude, you're hitting me with the math questions? Alright, well, a 42-inch diameter circle would have a radius of 21 inches, which means the area would be pi times 21 squared, which is around 1385.44 square inches. But if you want square feet, you gotta divide that by 144 because there are 144 square inches in a square foot. So, like, the answer would be around 9.63 square feet. Math, man, it's wild.

Answer 5

Well, honey, a 42-inch diameter circle has a radius of 21 inches. To find the area, you gotta use the formula A = πr^2. So, plug in 21 for the radius, square it, multiply by π, and you get approximately 1385.44 square inches. And if you wanna convert that to square feet, just divide by 144 because there are 144 square inches in a square foot. So, the answer is about 9.63 square feet.

Answer 6

1,385.44 square inches (rounded)