What are the possible dimensions of a rectangle with an area of 40 square units? check all that apply.
base: 8 units
height: 5 units

base: 8 units
height: 6 units

base: 4 units
height: 10 units

base: 4 units
height: 8 units

base: 20 units
height: 2 units

base: 2 units
height: 40 units

A = B * H
40 = 1 * 40
40 = 2 * 20
40 = 4 * 10
40 = 5 * 8
Option 1, 3, 5

Answers:

[A]:  Base: 8 units
       Height: 5 units

{Note:  Since:  " 8 units * 5 units = 40 square units . " }.

[C]:  Base: 4 units
        Height: 10 units

{Note:  Since:  " 4 units * 10 units = 40 square units . " }.

[D]:  Base: 20 units
        Height: 2 units

{Note:  Since:  " 20 units * 2 units = 40 square units . " }.