find the length of arc area perimeter for radius is 70cm and central angle is 120degree
Answers
Answered by
0
Answer:
Step-by-step explanation:
Radius = 7 cm.
theta = 120 deg.
Area of sector = theta/360 × pi × r^2.
= 120/360 × 22/7 × 7 × 7.
= 1/3 × 22 × 7
= 154/3 cm^2.
= 51.33 cm^2.
Hence the area is 154/3 or 51.33 cm^2.
Similar questions