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Gnesinka [82]
3 years ago
9

Find the lateral area of the come in terms of pi.

Mathematics
2 answers:
Norma-Jean [14]3 years ago
4 0
The answer should be 12x cm power of 2
arsen [322]3 years ago
4 0

Answer:

15\pi sq. cm.

Step-by-step explanation:

The lateral area of a cone is given by the formula  \pi rl

Where, r is the radius, and l is the slant height

<em>r is given as 3 cm, but slant height is not given. Let's use the pythagorean theorem on the triangle created by 3cm , 4cm, side and lateral side (slant height).</em>

<u />

<u>Let slant height be l:</u>

3^2+4^2=l^2\\25=l^2\\l=5

Now plugging into the formula, we get:

Lateral area = \pi rl = \pi (3)(5)=15\pi

Second answer choice is right,  15\pi sq. cm

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