adalsaad2004 adalsaad2004

24-01-2021
Mathematics

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Find the following, giving your answers to 1 decimal place. 10 cm 8 cm 6 cm a) The volume of the cone. b) The curved surface area of the cone.

Respuesta :

PiaDeveau PiaDeveau

29-01-2021

Answer:

Volume of cone = 209.44 cm²

Curved surface area of cone = 188.57 cm

Step-by-step explanation:

Given:

Height h = 8 cm

Slant height l = 10 cm

Radius r = 6 cm

Find:

Volume of cone

Curved surface area of cone

Computation:

Volume of cone = (1/3)πr²h

Volume of cone = (1/3)π(5)²(8)

Volume of cone = 209.44 cm²

Curved surface area of cone = πrl

Curved surface area of cone = π(6)(10)

Curved surface area of cone = 188.57 cm

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