Question

find the Area and perimeter. Write your answer in terms of pie.

Answer 1

Area of a quarter of circle

A = 1/4 * π * R²

A = 1/4 * π * 12²

A = 36 * π cm²

Perimeter of a quarter of circle

P = 1/4 * 2 * π * R²

P = 1/4 * 2 * π * 12²

P = 72 * π cm

Area of a right triangle

A = b * h / 2

A = 12 * 12 / 2

A = 72 cm²

Length of hypotenuse

L = 12√2 cm

Area of blue

A = 36 * π - 72

A = 36 * ( π -  2) cm²

Perimeter of blue

P =  12 * (6 * π + √2 ) cm

Hope it helps

xxx

Answer 2

Do the semi circle first and the formula for that would be x=pi•D
Then do the triangle and add those answers together