Question

the pumkin pie has a diameter of 136 inches. find the exact area of the top of the pie, and an approximation. use 3.14. the exact area of tthe top of the pie is(simplify and type an exact answer in term of 3.14)

Answer 1

A = 4624π in² and A ≈ 14519.36 in²

The area (A) of a circle is

A = πr² ( r is the radius )

here diameter = 136 ⇒ r = $\frac{136}{2}$ = 68 in

A = π × 68² = 4624π in² ( exact value )

using π ≈ 3.14

A = 3.14 × 68² ≈ 14519.36 in² ( approximate value )