Answers

2014-01-09T21:50:01+08:00
Example:  the perimeter of a triangle is 84 cm. The ratio of its sides is 3:2:2. Find the length of the sides.

Divide 84 by the sum of the ratios
84 divided by (3+2+2)=?
84/7=12
Multiply 12 to the ratio
12(3)=36
12(2)=24
12(2)=24

The length of the sides are 36 cm, 24 cm, and 24 cm. The triangle is an isosceles triangle. 

Checking:
 36+24+24=¿
36+24+24=84

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