Question

find the LSA of cylinder with radius=7 and height=15cm​

Answer 1

Question :

find the LSA of cylinder with radius=7 and height=15cm .

Answer :

$\sf\pink{Given:}$

• Radius of a cylinder is 7 cm .

• Height of a cylinder is 15 cm .

$\sf\pink{To\:find:}$

• lateral surface area of the cylinder ?

Explanation :

$\sf{LSA of cylinder = 2\pi rh}$

$\sf\\ \longrightarrow\sf{LSA \:of\: cylinder = 2\times \dfrac{22}{7}\times 7\times 15}$

$\sf\\ \longrightarrow\sf{LSA\: of\: cylinder = 2\times 22\times 15}$

$\sf\\ \longrightarrow\sf{LSA\: of\: cylinder = 44\times 15}$

$\sf\\ \longrightarrow\sf{LSA\: of\: cylinder = 660}$

Therefore the lateral surface area of the cylinder is 660 cm² .