Question

what is the perimeter of triangle DFG. The perimeter of triangle DFG is 54 inches. The perimeter of triangle DFG is 27 inches. The perimeter of triangle DFG is 36 inches. The perimeter of triangle DFG is 52 inches

Answer 1

The answer: 54 inches

Explanation: those triangles are similar which means if one side is multiplied by 3 then all the other sides should be multiplied by 3 so since the DF=15=3•AB we need to multiply seven by 3 and we’ll get 21. For the perimeter, we write: 21+15+18=54.