Question

The sides of a triangle are in the ratio of 1:2:2 and the perimeter of the triangle is 15 feet. The length of the shortest side is?

2.5 feet
3 feet
5 feet
7.5 feet

Answer 1

use the unitary method... which requires you to find the value of 1 unit in the ratio.

add the parts in the ratio.....1 + 2 + 2 =

the take the perimeter and divide but the number of parts in the ratio.

this will be the value of 1 part ... and the length of the shorter side...


hope it makes sense

Answer 2

So 3 feet?
1+2+2=5/15=3?

Answer 3

that's correct