A rectangle has an area of 20 square centimeters. Which of the following could be the rectangle's length and width?
(Area = length x width)
Choose all answers that apply:
3 cm and 8 cm
1 cm and 20 cm
2 cm and 10 cm
4 cm and 5 cm

All but the first answer choice could be the length and width of a rectangle.

Step-by-step explanation:

3 cm and 8 cm produce 24 cm^2 when multiplied together.  Reject.

1 cm and 20 cm, when multiplied together, result in 20 cm^2.  Select.

2 cm and 10 cm => 20 cm^2  Select

4 cm and 5 cm  => 20 cm^2.  Select

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

step-by-step explanation:

the triangles are similar. therefore the corresponding sides are in proportion:

              cross multiply

            divide both sides by 32