B. 273 square inches
To calculate the area of a rectangle, you multiply the length by the width. In this case, 13 inches x 21 inches = 273 square inches.
What is the area of the rectangle?
The numbers: 13 in, and 21 in.
A. 34 square inches
B. 273 square inches
C. 68 square inches
D. 256 square inches
1 answer