if length of each side of an equilateral triangle is doubled what percent of area will be increased of this triangle ?
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Answer:
Step-by-step explanation:
area of equilateral triangle = (3/4) a2
length doubled = 2a
= (3/4) * (2a)2
= 4(3/4)a2
= 4 times the area of triangle 1
% increase = change/original *100
= (4A-A)*100/A
=300%
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