Question

If each of the dimensions of a rectangle is incresed by 100%, then the area is increased
a) 400%
b) 100%
c) 200%
d) 300%​

Answer 1

Answer:

It's 400%

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Answer 2

Answer:

d) 300%​

Step-by-step explanation:

l₂=l₁+100%*l₁=2l₁

d₂=d₁+100%*d₁=2d₁

area₂=2l₁*2d₁

area₂=4l₁d₁

area₁=l₁d₁

area₂-area₁=4l₁d₁-l₁d₁

                 =3l₁d₁

                =300% * area₁