Question

3. The curved surface area of a cylinder is 1,320 cm² and its base has a radius of
10.5 cm. Find the height of the cylinder.​

Answer 1

Answer:

$\huge{\underline{\underline{\sf{AnSWeR}}}}$

C.S.A of cylinder =1320 cm²

radius =10.5 cm

height =?(To find)

$C.S.A =1320cm {}^{2}$

$⇒2πrh=1320cm {}^{2}$

$⇒ 2 \times \frac{22}{7} \times 10.5 \times h = 1320$

$⇒ \frac{462}{7} \times h = 1320 \\ h = \frac{1320}{60} cm \\ h = 20cm$

Therefore Height =20cm