the base of an isosceles triangle is 18 cm and its area is 108 cm^2 find its perimeter
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shruti9364:
answer is wrong
Hmm sorry
It is 48
Not 42
Ok
Sorry because I misunderstood the question before
Is it ok now ?
Answered by
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Using the formula to find area of a triangle, 1/2(b)(h).
We can write, 1/2 (18)(h)=108
=9h=108
=h=108/9=13cm_ height meaning the equal sides of the isocelus triangle.
Perimeter=12+12+18=42
cm^.
The answer is wrong sorry.
ok
thanks for solving
Wlx
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