Question

From a circular aluminium sheet of radius 14cm a sector of angle 45degree is removed. find the percentage of the area of the sector removed. solve it

Answer 1

Answer:

89.24 cm²

Step-by-step explanation:

I assume 45° is the central angle (I mean if you have a picture it's important to attach it, because there are different angles in a circle).

(45° / 360°) * 100 = 14.5 %

A = πr² = 3.14 * 14² = 615.44 cm²

615.44 * 0.145 = 89.24 cm²