Question

Pleasee HELP I HAVE TO TURN THIS IN pleaseee

Answer 1

Answer:

Below

Step-by-step explanation:

The surface are is given by this formula:

Sa= area of the base*the heigth + the area of the base *2

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2)

The base here has a triangular form.

Let A be the area of this triangle.

A= (6*8)/2 = 24 cm^2

Sa = A* 6 + A*2

Sa= 24*6 + 24*2

Sa = 192 cm^2

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The base here is a circle.

The area of a circle is :

A= r^2 * Pi

r is the radius (here 12 km)

A = 12^2* Pi

A= 144 Pi cm^2

Sa = 2*A + A* h

Sa = 7* 144* Pi + 2* 144* Pi

Sa= 4071.504

So the surface area is aporoximatively 4072 km^2