Scale drawing of the gym. A rectangle with length 9 centimeters and width 4 centimeters.

StartFraction 1 centimeter over 10 meters EndFraction = StartFraction 9 centimeters over new length EndFraction. (1) (new length) = (10) (9). New length = 90 meters.

Using the scale of 1 cm: 5 meters, Tamara calculated the length of her old gym to be 45 meters and the width to be 20 meters.

Using a new scale, 1 cm: 10 meters, she found the length of the new gym to be 90 meters.

The width of the new gym is
6
14
40
90
meters.
The length and width of the new gym are
2
4
45
90
times the length and width of the old gym.