3 February, 17:28
A triangle has a perimeter of 91 centimeters. each of the two longer sides are three times as long as the shortest side. find the length of the three sides
3 February, 17:44
perimeter = a+b+c
a = short side
b = 3a
c = 3a
a + 3a+3a = 91
7a = 91
a=91/7 = 13
short side = 13cm
long sides = 3*13 = 39cm each
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» A triangle has a perimeter of 91 centimeters. each of the two longer sides are three times as long as the shortest side. find the length of the three sides