Question

Find the perimeter of the given triangle. triangle WZX,if triangle WZXsimiliar to triangle SRT ST=6,WX=5, and the perimeter of triangle SRT=15

Answer 1

Perimeter of WZX = 12.5

Answer 2

ok can you show me how?

Answer 3

If two triangles are similar, then the ratios of their sides will be equivalent. Which means the ratio of their perimeters will be equal to that ratio. The ratio of ST/WX = 1.2 , Therefore, the ratio of the perimeters will also be 1.2. Knowing all of this, we can set up a proportion to find out the perimeter of the WZX:

ST/WX = SRT/WZX

6/5 = 15/x

6x = 75
x = 75/6
x = 12.5

Answer 4

thanks