Q3 of 64 Page 74

Find the area and perimeter of the sector with

radius 10 cm and arc length 33 cm.

Given:

radius (r) = 10 cm


Arc length (a) = 33cm


area of sector = ?


perimeter of sector = ?


As we know,


(a) Area of sector =



⇒ area of sector = 165 cm2


(b) perimeter of sector = r + r + length of arc


= 2 ( r) + length of arc


= 2(10) + 33


= 20 + 33 = 53cm


More from this chapter

All 64 →
2

The arc length of a sector of a circle of radius 14 cm is 22 cm. Find its central angle.

 2

Find the radius of a sector of a circle having a central angle 70°and an arc length of 44 cm.

 3

Find the area and perimeter of the sector with

radius 55 cm and arc length 80 cm.

 3

Find the area and perimeter of the sector with

radius 12 cm and arc length 15.25 cm.