the unequal sides of an isosceles triangle measure 24 cm and its area is 60 square cm find perimeter
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Area of isosceles triangle= 1/2×24×height=60
So,12h= 60
Hence,h=60/12=5cm
Now height=5cm
base=24cm
So,hypotenuse=?
We know by Pythagoras theorem that (AB)²+(BC)²= (AC)²
Here
a=24/2=12cm (As base is divided into two parts by the altitude)
b=5cm
So,
(hypotenuse)²= (12)²+(5)²=169cm
So,side=hypotenuse=√169=13cm
So,
Perimeter=24cm+13cm+13cm=50cm
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0
Answer:
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answer is 50 cm
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