The perimeter of an isosceles triangle is 42 cm and its base is 1.5 times each of equal sides. Find the area of triangle.
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Ab+ bc +ac =42
ab=1.5ac and bc =ac
so 1.5 ac+2ac =42
ac=12=ab
bc =18
at. =b×h/2
12×12/2= 72 sq.m
ab=1.5ac and bc =ac
so 1.5 ac+2ac =42
ac=12=ab
bc =18
at. =b×h/2
12×12/2= 72 sq.m
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