Question

Given 2 similar polygons with scale factor 5:7 and the perimeter of the larger polygon are 490 inches, find the perimeter of the smaller polygon.

Answer 1

Answer:

  350 inches

Step-by-step explanation:

The 7 "ratio units" represent 490 inches, so each represent 490/7 = 70 inches. Then 5 "ratio units" will represent 5×70 inches = 350 inches.

  smaller perimeter : larger perimeter

  = 5 : 7

  = (350 inches) : (490 inches)