AFCAT II 26 AUG 2022 Shift 1 Paper

Given:
Length of rectangle =180m
Breadth of rectangle =120m
Area between circle and rectangle =40000m2
Area of rectangle = Length × Breadth
Area of circle =πr2
According to the question,
Area of the circle − area of rectangle =40000
⇒πr2−(120×180)=40000
⇒‌

22

7

r2=40000+21600=61600
⇒r2=‌

7

22

×61600=19600
⇒r2=(140)2
⇒r=140
∴ The radius of the circle is 140m .