a certain polygon has 9 sides.Two of the sides have length of a,and 4 sides each have length 3a.The lengths of the remaining thr
ee sides are 11,12, and 13.If the perimeter of the polygon is 92,what is the value of a?
1 answer:
92 = 11 + 12 + 13 + 2(a) + 4(3a)
92 = 36 + 2a + 12a
92 = 36 + 14a
-36 -36
56 = 14a
56/14 = 14a/14
a = 4
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