Question

He plans to cut another piece of cardboard in the same shape. The length of the sides AB and DC of the new piece of cardboard are made four times the original dimensions, and the length of the side AD is tripled. What is the area of the new cardboard piece?

Answer 1

twelve times the area of the original cardboard piece

one-sixth of the area of the original cardboard piece

four times the area of the original cardboard piece

one-third of the area of the original cardboard piece

Answer 2

@Calcmathlete

Answer 3

@Callisto

Answer 4

Ratio of sides: \(a : b\)
Ratio of areas: \(a^2 : b^2\)
It says that the sides were made 4 times bigger.
\[4 : 1 \rightarrow 4^2 : 1^2 \rightarrow ?

Answer 5

Last line should say: \[4 : 1 \rightarrow 4^2 : 1^2 \rightarrow ?\]

Answer 6

is it the first of third one?

Answer 7

I think that it would be the first one...

Answer 8

okay I see thanks