Calculate the area of a rectangle that is 1,257 mm long and 3 cm wide.

Given:

length of the rectangle – 1257 mm

width of the rectangle – 3 cm

Find:

S of rectangle -? mm2

Solution:

First, let’s translate the width of the rectangle into millimeters:

3 cm = 30 mm, as in 1 cm – 10 mm

Let’s use the formula for finding the area of a rectangle:

S rectangle = a * b

S of rectangle = 1257 * 30

S rectangle = 37710 mm square

37710 mm square = 377 cm square and 10 mm square

Answer: S rectangle = 37710 mm square.