Given triangleABC proportion to trianglePQR. If AB=4cm, BC=6cm, AC=9cm, and QR=4cm, find the perimeter of trianglePQR
Perimeter of triangle ABC = 19
If you are following standard convention of listing the vertices of similar triangles,
QR corresponds with BC and since QR = 4/6 or 2/3 of BC
the perimeter must be (2/3)(19) or 38/3 cm