Question

Find the slant height of a cone, if its curved surface area is 70 ²

and its

radius is 7cm.​

Answer 1

Answer:

r=7cm, l=10cm

C.S.A. of cone =πrl

=  

7

22

​  

×7×10

=220 sq.cm

Step-by-step explanation:

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Answer 2

Answer:

Given :-

• CSA of cone = 70 cm²
• Radius = 7 cm

To Find :-

Slanght Height

Solution :-

As we know that

$\large \sf \: CSA \: = \bold{\pi rl}$

R is the Radius

L is the Slanght Height

70 = 22/7 × 7 × l

70 = 22 × l

70/22 = l

3.18 = L

Therefore,

Slanght height of cone is 3.18 cm