17. A) The perimeter of a rectangle is 30 cm. There will be a decrease of 2 cm² in its area
if the length is reduced by 2 cm and breadth is increased by 1 cm. Then find its
length and breadth using graph.
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answer: perimeter of rectangle
Step-by-step explanation:
2(a+b)30=2(10+b)30=20+2b b=30-20/2b=10/2=5cm
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