Each edge of the following square is 20 cm long, and a circle is inscribed in the square as shown. What is the area of the shaded region? [Use π = 3.14]
Answer & explanation
Correct answer: option 3
We know that,
Area of square = (side)2
Area of Circle = πr2
We have,
Diameter = 20 cm = Edge
Then, Radius = 10 cm
According to the question,
Area of shaded region = Area of Square - Area of Circle
= Area = (20)2 - π(10)2
= Area = 400 – (3.14) × 100
= Area = 400 – 314 = 86 cm2