Question

find the total surface area of a cylinder of height 8cm and radius of base 4cm answer is 302 cm square.
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Answer 1

Answer:

Height of cylinder :- 8cm

Radius of its base :- 4cm

◍We have to find its Total Surface Area.

So,

$t.s.r. = 2\pi \: r(r + h) \\ = > 2 \times \frac{22}{7} \times 4(4 + 8) \\ = > 2 \times \frac{22}{7} \times 4(12) \\ = > 2 \times \frac{22}{7} \times 48 \\ = > \frac{44}{7} \times 48 \\ = > \frac{2112}{7} \\ = > 301.71 \\ = > 302cm {}^{2} approx.$

Hope it helped ✌️ ✌️