If the height of a triangle is decreased by 40% and its base is increased by 40%, what will be the effect on its area?

If the height of a triangle is decreased by 40% and its base is increased by 40%, what will be the effect on its area?

A No change

B 8% decrease

C 16% decrease

D 17% increase

Solution

Correct Answer: Option C

p-q-(pq)/100=40-40-(40x40)/100=-16%