Question

Find the area of shaded portion.

solve step by step​

Answer 1

First find area of rectangle = 30 × 20 = 600

Then there are four qudrant find their area = 1/4 Pie r ²

= r = 7

22/7 × 49/4 = 77/2

multiply it by 4 to get all quadrant area = 154

Minus it from rectangle area = 600 - 154 = 456