if the height of a triangle is decreased by 40%and its base is increased by 40% ,what will be the percentage in its area?
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If a certain number changes successively by A% and B%, the effective percentage change = A+B+AB/100
In this case, Effective percentage change = 40−40+(40∗−40)/100
= -16 %
Hence the Area of the new triangle decreases by 16%.
In this case, Effective percentage change = 40−40+(40∗−40)/100
= -16 %
Hence the Area of the new triangle decreases by 16%.
sharia5876:
give in equation
how to do in Equation
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