7. The base of a triangle is increased by 25%. By
what percent should height be decreased so that
the area of the triangle will remain unchanged?
(A) 16.67%
(B) 20%
(C) 25%
(D) 33.33%
(E) 50%
Answers
Answered by
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Step-by-step explanation:
20%
when height and base are normal =100×100
when base is increased by 25=125×x
As they are same x=(100×100)/125=80
So decrease =100-80=20
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