Let's denote the width of the painting as w.
The formula for the perimeter of a rectangle is given by P = 2l + 2w, where l is the length and w is the width.
Given that the length of the painting is 99 cm and the perimeter is 320 cm, we can set up the equation:
320 = 2(99) + 2w
320 = 198 + 2w
2w = 320 - 198
2w = 122
Dividing by 2 on both sides, we get:
w = 61
Therefore, the width of the rectangular painting is 61 cm.
The perimeter of a rectangular painting is 320 cm. If the length of the painting is 99 cm, what is its width?
1 answer