Question

The csa of cone is 4070cm2 and diameter is 70 cm what will bebits slant height

Answer 1

Given:

• Curved surface area, C.S.A = 4070 cm²

• Diameter = 70 cm

To find out:

Find the slant height ?

Formula used:

Curved surface area of cone = πrl

Solution:

Diameter, d = 70 cm [ Given ]

★ Radius,r = d/2 = 70/2 cm = 35 cm

Let the slant height of cone be l .

Curved surface area of cone = πrl

➠ 4070 cm² = 22/7 × 35 × l

➠ 4070 = 22 × 5 × l

➠ 4070 = 110 × l

➠ l = 4070/110

➠ l = 37 cm

Thus, the slant height ( l ) of given cone is 37 cm.