Question

WILL GIVE MEDAL AND FAN PLEASE HELP I REALLY NEED HELP I DO NOT UNDERSTAND AT ALL!!


The scale factor for two similar rectangles is 3. If the area of the smaller rectangle is 8 m2, what is the area of the larger rectangle?
Answer Choices:
1. 24m2
2. 192m2
3. 72m2
4. 108m2

Is the correct answer, choice #3?

Answer 1

@austinL @amistre64 @thomaster

Answer 2

Iz this geometryy????

Answer 3

I don't know...i don't think so....this is pre-algebra I'm taking so...

Answer 4

Proportions I think.

Answer 5

thats weird...i dont remember pre-algebra like that?? lolz ok ill try

Answer 6

lol ok

Answer 7

72 is indeed correct.

Answer 8

can u show us how??

Answer 9

Thanks! @Ac2zoom Can you give an explanation so I know how to do it next time?

Answer 10

If the area of a square is 8, each side is sqrt(8). A scale factor of 3 would require you to multiply that side length by 3, which would be 3sqrt(8) or sqrt(8*9)=sqrt(72). The area of a square with that side length would be 72.

Answer 11

Ok, Thanks! @Ac2zoom