Find the perimeter one side of the rectangle is 8dm 6cm, and the other side is 5cm larger.

1) Determine the value of the length of the second side of the rectangle.

We add another 5 cm to the length of the known sides.

We get:

8 dm 6 cm + 5 cm = 8 dm 11 cm.

2) We translate the value of the lengths of the sides in centimeters.

1 dm = 10 cm.

Will be:

8 dm 6 cm = 8 * 10 + 6 = 86 cm.

8 dm 11 cm = 8 * 10 + 11 = 91 cm.

3) Find the perimeter.

Multiply the sum of the first and second sides by 2.

2 * (86 + 91) = 2 * 177 = 354 cm.

If converted to decimeter, it will be:

354 cm = 354/10 = 35 dm 4 cm.

Answer: The perimeter of the rectangle is 35 dm 4 cm.