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matrenka [14]
3 years ago
13

one side of a triangle is one-third the longest side. the third side is 11 ft less than the longest side. the perimeter is 73. f

ind all 3 sides
Mathematics
1 answer:
Len [333]3 years ago
7 0

side 1 = x

side 2 = x-11

side 3 = 1/3x


x + x-11 + 1/3x = 73

2x-11 + 1/3x = 73

2x = 6/3x

6/3x+1/3x = 7/3x


7/3x-11 = 73

7/3x = 84

7x =84*3

7x = 252

x = 252/7

x = 36

longest side = 36

2nd side = 1/3(36) = 12

3rd side = 36-11 = 25



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