The perimeter of a rectangular painting is 354 cm.
If the width of the painting is 79 cm, what is its length?

98cm

Step-by-step explanation:

Formula for perimeter of a rectangle is 2( length + width).

From the question, perimeter = 354cm while the width = 79cm.

Therefore, 354cm = 2(length + 79cm)

Therefore, divide both sides by 2;

354cm/2 = length + 79cm

Which gives; 177cm = length + 79cm;

Therefore subtract 79 from both sides to get 177 - 79 = length

Which gives length = 98cm

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step-by-step explanation: