Calculate the percentage increase in the area of an equilateral
triangle if the sides are increased by 10%.
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Answered by
18
Answer:
Step-by-step explanation:
Let the initial side be a units
Area =34a2sq. units
Now, side is tripled,
new side, a′=3a
New area =34(3a)2
=9×34a2
=9×(initial area)
Increase in area =9×(initialarea)−(initialarea)=8×(initialarea)
% increase = (increase/initial area)×100
=[8 ×(initial area)/(initial area)]×100
=800 %
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Answered by
2
Step-by-step explanation:
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