Dimensions 83603

The perimeter of the rectangle is 56 cm, and its length is three times greater than its width. What are the dimensions of the rectangle?

Final Answer:

a =  21 cm
b =  7 cm

Step-by-step explanation:

o=56 cm  o= 2a+2b a=3b  o=2 3 b+2b 56=2 3 b+2b  56=2 3 b+2 b  8b=56  b=856=7  b=7  a=3 b=3 7=21 cm



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