Each of the equal sides of an isosceles triangle is 13cm and base is 24cm. The area of the triangle is –
It is given in the question that,
Equal sides of isosceles triangle = 13cm
Base = 24 cm and 
= 12 cm
Let the height of the triangle be h
∴ (13)2 = (12)2 + h2
169 = 144 + h2
h2 = 169 – 144
h2 = 25
h = 5
Thus, area of triangle = 
= 
= 
= 
2
Hence, option (c) is correct
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