the width of a rectangle is 7 cm less than twice its length. its area is 30 square cm. find the dimensions

Mathematics

1 answer:

spayn [35]2 years ago

5 0

Answer:

l = 6 cm

w = 5 cm

Step-by-step explanation:

l(2l - 7) = 30

2l^2 - 7l - 30

(2l + 5)(l - 6)

l = 6

2(6) - 7 = 5

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sdas [7]

Answer:

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Step-by-step explanation:

For better understanding of the solution see the attached figure of the trapezium ABCD :

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