The perimeter of a circular plate is 132cm. find its area.
Answers
Answered by
2
Answer:
1386 cm ^2
Step-by-step explanation:
Let the radius of the circle is r cm
Perimeter of a circle = 2πr = 132
⇒ 2 × 7/22 × r = 132
⇒ r = 132 × 7/ 22 × 2
⇒ r = 21 cm
Area of the circle = πr^2
⇒ 22/7 × 21 × 21
⇒ 1386 cm ^2
Similar questions