Question

A porch has the shape of a quarter circle with a diameter of 5 ft.

What is the approximate area of the porch, rounded to the nearest square foot? Use 3.14 to approximate for Pi(3.14) .

Answer 1

Find the area:

\(A = \pi r^2\)

Answer 2

Then divide by 4

Answer 3

Since it's a quarter circle

Answer 4

The diameter is 5, so the radius is 2.5

\(A = (3.14)(2.5^2)\)

Answer 5

Or:

\(A = \dfrac{(3.14)(2.5^2)}{4}\)

Answer 6

4.90625

Answer 7

Yep, that's our answer.

Answer 8

Thanks to the both of you

Answer 9

No problem. :)