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An isosceles triangle has a perimeter of 45 cm. If the two equal sides are each twice as long as the smallest side, what is the length of the smallest side? A: 3 B: 7 C: 9 D: 15 E: 18
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An isosceles triangle has a perimeter of 45 cm. If the two equal sides are each twice as long as the smallest side, what is the length of the smallest side?

A: 3
B: 7
C: 9
D: 15
E: 18

User HBCondo
by
6.8k points

1 Answer

6 votes
The length of the smallest side is 9. I did 9 times 2 =18 then 18+18=36. 36 is the two equal sides combined add them with 9 and you get 45 the perimeter. This whole thing was process of elimination to try to get 45.

Small side=9
User Omrakhur
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