A room is 74 cm long and 61 cm wide. Aliza wants to carpet the area 2 cm wide all around outside the room. Find the area of the carpeting part of the room?

A room is 74 cm long and 61 cm wide. Aliza wants to carpet the area 2 cm wide all around outside the room. Find the area of the carpeting part of the room?

Explanation

Area of carpeting part = (74 + 4) * (61 + 4) - 74 * 61

= 78 * 65 - 4514

= 5070 - 4514

= 556 cm²