Asked by Dove
The perimeter of a triangle is 19 cm. If the length of the longest side is twice that of the shortest side and 3 cm less than the sum of the lengths of the other two sides, find the lengths of the three sides
Answers
Answered by
Steve
If the shortest side is x and the middle length is y, then
x + y + 2x = 19
But 2x is also x+y-3, so y=x+3, and
x + x+3 + 2x = 19
x = 4
and the sides are 4,7,8
x + y + 2x = 19
But 2x is also x+y-3, so y=x+3, and
x + x+3 + 2x = 19
x = 4
and the sides are 4,7,8
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