What is the area of the square (in cm2) whose vertices lie on a circle of radius 5 cm?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e 50.
Let the side of a square = a unit.
Diameter of a circle = 10 cm
Diameter of the circle = Diagonal of the square = 10
By using Pythagoras theorem,
⇒ a2 + a2 = 102
⇒ 2a2 = 100
⇒ a2 = 50.
Area of square = a2 = 50 cm2