Question

A right triangle has vertices at the origin, (0, 5) and (12, 0). The triangle was dilated with a scale factor of 3. What is the perimeter of the resulting triangle? Round to the nearest whole number, if necessary.

Answer 1

The three vertices are (0,0), (0,15) and (36,0).

Explanation:

Dilation : Multiply all vertices' values.

Vertice 1 : Origin = (0,0); (0*3,0*3) = (0,0)

Vertice 2 : (0,5); (0*3,5*3) = (0,15)

Vertice 3 : (12,0); (12*3,0*3) = (36,0)