Which of the following has an area of 40 square inches?

A
A rectangle that’s 10 inches long and 4 inches wide.

B
A rectangle that’s 20 inches long and 4 inches wide.

C
A rectangle that’s 30 inches long and 10 inches wide.

D
A rectangle that’s 40 inches long and 10 inches wide.

A rectangle that’s 10 inches long and 4 inches wide has an area of 40 square inches. So, the correct answer is option A.