Question

Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved
surface area. ​

Answer 1

Answer:

$diameter \: of \: cone = 10.5cm \\ r = 10.5cm \div 2 \\ 5.25 \\ slant \: height(l) = 10cm \\ csa \: of \: cone = \pi \: rl \\ 22 \div 7 \times 5.2 5 \times 10 \\ = 165$

Step-by-step explanation:

i hope it helps you

Answer 2

Answer:

160.28 cm (approximately)

Step-by-step explanation:

→ Given, D = 10.5 cm

R = 10.5 / 2 → R = 5.1 cm

l = 10 cm

→ C.S.A. (Curved Surface Area) of cone = πrl

→ π × r × l

→ 22 / 7 × 5.1 × 10

→ 22 / 7 × 51 / 10 × 10

→ 22 / 7 × 51

→ 1122 / 7

→ 160.28 cm (approximately)

→ Thus, the C.S.A. (Curved Surface Area of cone) with diameter 10.5 cm and radius 5.1 cm is 160.28 cm (approximately)

Please mark me as the Brainliest answer