The lengths of the sides of a rectangle become 4 times greater than the original measurements. Which statement is true about the rectangle?
Answer
Its area becomes 4 times greater, and perimeter becomes 16 times greater.
Its area becomes 16 times greater, and perimeter becomes 4 times greater.
Its area becomes 20 times greater, and perimeter becomes 4 times greater.
Its area becomes 4 times greater, and perimeter becomes 20 times greater.

Question

The lengths of the sides of a rectangle become 4 times greater than the original measurements. Which statement is true about the rectangle?
Answer
		Its area becomes 4 times greater, and perimeter becomes 16 times greater.
		Its area becomes 16 times greater, and perimeter becomes 4 times greater.
		Its area becomes 20 times greater, and perimeter becomes 4 times greater.
		Its area becomes 4 times greater, and perimeter becomes 20 times greater.

asnaseer · Answer

imagine the rectangle has a length 'l' and width 'w' - what would its area be in this case?

anonymous · Answer

original area=l*w
new area=4l*4w

can you see it now?

anonymous · Answer

I think so, so the answer is b?

anonymous · Answer

yes,  4l*4w=16lw

anonymous · Answer

ok thank you! I see, i get it now!