Question

Two rectangles are similar. One has a length of 11 cm and a width of 10 cm, and the other has a width of 7 cm. Find the length of the second rectangle. Round to the nearest tenth if necessary. 5.8 cm 6.4 cm 8.9 cm 7.7 cm

Answer 1

Explanation:

If the rectangles are similar to one another, then their sides exist in proportion to one another. Set up a proportion with the larger rectangle on top and the smaller rectangle on bottom:

`(l)/(s):(10)/(7)=(11)/(x)`

Cross multiply to get

10x = 77 so

x = 7.7