THe two sides of triangle are 7 and 18 cm an semi perimeter is 36 find third side
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perimeter = semi perimeter x 2 = 36 x 2 = 72
perimeter = sum of sides
72 = 7 + 18 + x
x = 72 - 25
= 47
azeenk11:
no not at all perimeter is double of semi perimeter
its 72
and 8 + 17 + 47 = 72
i hope u undersyand
we wanted the third side.The third side will never more than the perimeter
dude perimeter is not 36 ok perimeter is actually double of 72 just have a look at your question
perimeter should be 2x36 = 72
I thought the perimeter is 32.sorry
a sorry is not needed
It is my mistake.Thats why I said sorry
Answered by
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perimeter=72
so third side is 72-18+7=47
Hope it helps u......
so third side is 72-18+7=47
Hope it helps u......
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