Answer :
The width of the rectangle given the perimeter is 21 cm
How to find width of a rectangle
Given:
- Perimeter of the rectangle = 182 cm
- Length of the rectangle = 70 cm
- Width of the rectangle = w cm
Perimeter of a rectangle = 2(length + width)
182 = 2(70 + w)
182 = 140 + 2w
- subtract 140 from both sides
182 - 140 = 2w
42 = 2w
- divide both sides by 2
w = 42/2
w = 21 cm
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