Question

If triangle tsr is congruent to triangle tfe how do i find the perimeter of triangle tfe

Answer 1

72.5

Explanation:

To find the perimeter of the triangle, add all three sides. Since triangles TSR and TFE are similar, the missing side of TFE can be found using proportions.

`(25)/(40)=(x)/(22)`

Solve by cross multiplying:

40(x) = 25(22)

40x = 550

x = 13.75

Find the other side by repeating the process.

`(25)/(40)=(y)/(54)`

Solve by cross multiplying:

40(y) = 25(54)

40y = 1350

x = 33.75

The perimeter is 25 + 13.75 + 33.75 = 72.5