Saved Bookmarks
| 1. |
The perimeter of sector is 32c.m radius is 6c.m then find the area of sector? |
|
Answer» since AREA of circle=25π sq.CM ⇒πr 2 =25π ⇒r=5cm and perimeter of SECTOR=20 cm ⇒2r+s=20 ⇒2.5+s=20 ⇒s=10 cm where s = arc LENTH of sector ∵θ= r s
= 5 10
=2 area of sector= 360 o
θ
.πr 2
= 2π 2
.π5 2
=25 cm 2 |
|