Question

The areas of two similar

squares are 16 m2 and 49 m2.
What is the scale factor of
their side lengths?
[?]:[ ]

Answer 1

4:7

Explanation:

We know that

Area of square = s²

For square 1

16 = s²

√16 = s

4 = s

For square 2

49 = s²

√49 = s

7 = s

Scale factor = 4:7

Answer 2

4:7

Take the square root of each square to get the side lengths

4*4=16
7*7=49