The area of a square is 40 cm2. Its side length is enlarged by a scale factor of 3.
What is the area of the new square?
Area of enlarged square = ____cm2

Question

The area of a square is 40 cm2. Its side length is enlarged by a scale factor of 3.
What is the area of the new square?
Area of enlarged square =  ____cm2

anonymous · Answer

multiply by square of scale factor

helpmeplease!!! · Answer

im new to the topic so i dont really understand

anonymous · Answer

Area of square : (side)^2

Now, your side has become : 3*Side..

So, Area of square = (3side)^2..

helpmeplease!!! · Answer

is it just 40 x 3? which is 120 cm^2?

anonymous · Answer

let us suppose length=2cm
area=2^2=4
scale factor=3
new length=2*3=6 cm 
area=6^2=36
36=4*9
or36=4*3^2

helpmeplease!!! · Answer

hmm sorry im still not sure

anonymous · Answer

new area=36
old area=4
scale factor=3
so new area =old area*(scale factor)^2

skullpatrol · Answer

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