Two rectangles are similar. One has a length of 10 cm and a width of 8 cm, and the other has a width of 7 cm. Find the length of the second rectangle. Round to the nearest tenth if necessary.

Guest Jan 15, 2020

#1**+1 **

If by similar you mean the area is the same then you find the area of the first.

10*8=80cm^2.

The second triangle then is 7*x=80 which can be rewritten as x=80/7 => x=11.4.

danne9000 Jan 15, 2020

#2**+2 **

Best Answer

7 is to 8 as x is to 10

7/8 = x/10

x = 7/8 * 10= 70/8 = 8 3/4 cm

ElectricPavlov Jan 15, 2020