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? |
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(a) |
No change |
(b) |
8% decrease |
(c) |
16% decrease |
(d) |
16% decrease |
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) |
16% decrease |
Initial base = initial height =
Initial area =.
New base = of
cm.
New height = 60% of cm.
New area = .
Area decreases = .
Decreased % =