Question

curved surface area is 4070,radius =70 find slant height. ​

Answer 1

Step-by-step explanation:

Let the Slant height be 'l'

Given:- Radius (r) = 70

πrl = 4070

$\frac{22}{7} \times 70 \times l = 4070$

$22 \times 10 \times l = 4070$

$l = \frac{4070}{220}$

$l = 18.5$

Answer :- Slant height is 18.5.

Answer 2

$\huge \color{maroon}Answer :$

Curved surface area of a cone =πrl, where r is the radius of the cone and 1 is the slant height.

Radius = Diameter/2 =35 cm

Hence, curved surface area of this cone = 22/7 ×35× 1 =4070

⇒1 = 7×4070/22×35

⇒1 =37 cm