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

sq. cm.

Step-by-step explanation:

The lateral area of a cone is given by the formula  

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

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).

Let slant height be l:

Now plugging into the formula, we get:

Lateral area =

Second answer choice is right,   sq. cm

answer;

the correct answer

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the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.