Question

The perimeters of two similar polygons are 20 and 28. One side of the smaller polygon is 4. Find the corresponding side of the larger polygon. 2 5 5 7

Answer 1

This is the concept of linear proportionality, the linear scale factor of the polygon given will be:
[perimeter of larger polygon]/[perimeter of smaller polygon]=[length of larger polygon]/[length of smaller polygon]
=28/20
=7/5
thus the length of the larger polygon will be given by:
7/5=x/4
thus;
7/5*4
=5.6
thus the length 5.6

Answer 2

The answer is what's been verified, you just have to turn 5.6 into a fraction. So the answer is 5 3/5. (5 and three-fifths)

Have a great day :)

-Fishtank
>(^8^)<