Ryder is building a workbench.

The top of the workbench is a rectangular piece of plywood that is 6.25 feet long and 1.83 feet wide.


Part A

Round the length and width to the nearest whole number.

Then estimate the perimeter of the workbench.

Which of the following equations models this estimate of the perimeter?

A6 + 6 + 2 + 2 = 16

B6 × 2 = 12

C7 + 7 + 2 + 2 = 18

D7 × 2 = 14

Part B

Round the length and width to the nearest tenth.

Then estimate the perimeter of the workbench.

Which of the following equations models this estimate of the perimeter?

A6.2 + 6.2 + 1.8 + 1.8 = 16

B6.2 × 1.8 = 11.16

C6.3 + 6.3 + 1.8 + 1.8 = 16.2

D6.3 × 1.8 = 11.34