Question

Find the perimeter of triangle GEH if triangle GEH∼ triangle DEF​

Answer 1

Answer: B.) 32

Explanation:

Because the triangles are similar, you can use proportions to find GH. 10/15 is 2/33, so triangle GEH is 2/3 the size of triangle DEF.
2/3 of 21 is 14, so GH = 14. 8 + 10 + 14 = 32