The Area of an isosceles triangle is 240 square centimeter, If the base of the triangle is 20cm then find the measure of equal sides ,height corresponding to sides 20cm and perimeter.
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Area= 1/2×b×h
Therefore, 1/2×b×h=240
1/2×20×h=240
Therefore, h =(240×2)÷20 = 24cm
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