Question

A rectangle is 4.5 centimeters wide and 6 centimeters long. Calculate the perimeter of the rectangle, in millimeters.

Answer 1

Perimeter = 210 mm

Step-by-step explanation:

First, we need to convert 4.5 cm and 6 cm to mm. To convert the numbers, we need to multiply the number by 10, so:

4.5 cm = 4.5 x 10 mm = 45 mm

6 cm = 6 x 10 mm = 60 mm

Then, the perimeter is equal to the sum of two times the width and two times the length, so:

Perimeter = 2(Width) + 2(Length)

Perimeter = 2(45 mm) + 2( 60 mm)

Perimeter = 90 mm + 120 mm

Perimeter = 210 mm

Therefore, the perimeter of the rectangle is 210 millimeters.