Question

Find the total surface area of a cone with diameter 6cm and slant height 11cm

Answer 1

Answer:

πr(l+r)

Step-by-step explanation:

π*3*(11+3)

π*3*14

22/7*3*14

Answer 2

The total surface area of a cone is 131.94 cm.

Step-by-step explanation:

Given that,

Diameter = 6 cm

Height = 11 cm

We need to calculate the total surface area of a cone

Using formula of total surface area of a cone

$A=\pi\times r\times l+\pi\times r^2$

Where, r = radius of the base of cone

l = slant height

Put the value into the formula

$S.A=\pi\times3\times11+\pi\times(3)^2$

$S.A=131.94\ cm$

Hence, The total surface area of a cone is 131.94 cm.

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Topic : total surface area

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