Question

The ratio of the measures of the sides of a triangle is 21:8:14. If the perimeter of the triangle is 215 feet, find the length of each side.

Answer 1

let the length of each side be 21x , 8x and 14x respectively.

and we know that perimeter of a triangle = sum of all sides

so,

21x + 8x +14x = 215

43x =215

x = 215/43

x = 5

hence the required sides are 21×5=105 feet , 8×5=40 feet and 14×5=70 feet

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Answer 2

#21x+8x+14x=215=43x=215 ###43x=215 x=215÷43 x=5 #so,side of triangle are:21x=21×5=105 #8x=8×5=40 #14x=14×5=70