................................
Is between 0 and 1 the image is a reduction. If the scale factor is greater than 1, the image is an enlargement.
It's simple. The base of the rectangle is equal to the base of the big triangle. The height of the rettangle is equal to the base of the small triangle.
First you can calculate the area of the rectangle.
Ar = b*h = 5*8 = 40 in^2
Then you calculate the area of the two triangles
Small triangle area = (b*h)/2 = (6*5)/2 = 30/2 = 15 in^2
Big triangle area = (b*h)/2 = (8*7)/2 = 56/2 = 28 in^2
Sum the area of all polygons.
40+15+28 = 83 in^2
Answer C
371 is the awnser
Just use a calculator and keep on multiplying 7 by a number until you getan awnser that will work for the specific ocasion
