A frame is needed for a rectangular picture whose dimensions are cm and cm. If the cost of producing one meter of the frame is 9 pounds, how much will the entire frame cost?
First, use the formula for the perimeter of a rectangle to find the total frame length.
Then convert centimetres to metres. There are 100 centimetres in 1 metre, so we divide the number of centimetres by 100 to convert to metres.
The cost per metre is 9 pounds, so multiply the number of metres by 9 to find the cost of the entire frame.