Question 172062
A triangle has a perimeter of 46 cm. The longest side is twice as long as the shortest side. the third side is 6 cm longer than the shortest side. the length of the shortest side is____cm.
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a = shortest side
c = longest
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c = 2a
b = a+6
a+b+c = 46
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a + (a+6) + 2a = 46
4a + 6 = 46
4a = 40
a = 10 cm