the sector of circle has radius of 21cm and central angle 135° . find the perimeter
Answers
Answered by
0
Answer:
If the sector of the circle has a radius of 21cm and a central angle 135°, then the perimeter of the circle 132cm.
Step-by-step explanation:
Given: If the radius of circle = 21 cm
The central angle = 135°
The perimeter of circle = The circumference of a circle
The perimeter of circle = 2 πr
= 2 × 22/7 × 21
= 2 × 22 × 3
= 44 ×3
= 132 cm
So, the perimeter of circle is 132 cm.
Similar questions