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Find the surface area of each figure. round to the hundredths place

Find the surface area of each figure. round to the hundredths place-example-1
User Oksana
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7 votes

Given:

In the given cone,

Radius of the cone = 7.2 m

Slant height of the cone = 17 m

To find:

The surface area of the cone.

Solution:

The surface area of a cone is:


A=\pi rl+\pi r^2

Where, r is the radius of the cone and l is the slant height of the cone.

Putting
\pi=3.14,\ r=7.2,\ l=17 in the above formula, we get


A=(3.14)(7.2)(17)+(3.14)(7.2)^2


A=384.336+162.7776


A=547.1136


A\approx 547.11

Therefore, the surface area of the given cone is 547.11 square m.

User Jmonsky
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