Question

Find the total surface area of a
cone if its base a radius & height
are 30 cm & 80 cm respectively​

Answer 1

Answer:

In a cone,

Radius = 30cm

Height = 80cm

$</em></strong><strong><em>T</em></strong><strong><em>otal \: surface \: area \: of \: a \: cone \: = \pi \: r (r + l)$

➡️ 22/7 × 30 (30+80)

➡️ 22/7 × 30 × 110

➡️ 10,371.42cm²

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