Question

Find the height of a whose radius is 7cm and the TSA is 968 cm²

Answer 1

Answer:

cylinder or cone.....?

Answer 2

Given:

• Radius =7cm
• Total surface area =968 cm²

To Find out:

Height =?

Formula used:

total surface area of cylinder =2πr(r+h)

Solution :

total surface area of cylinder =2πr(r+h)

$968 = 2 \times \frac{22}{7} \times 7(7 + h)$

$968 = 44(7 + h)$

$7 + h = \frac{968}{44}$

$7 + h = 22$

$\red{h = 15}$