Length and breadth of a rectangle are directly proportional

Asked by admin @ 13/08/2021 in Math viewed by 357 People

4. length and breadth of a rectangle are directly proportional. if length increases from 6 cm to 21 cm and if breadth now is 14 cm, then what was the breadth before any change in length occurred?Â

Answered by admin @ 13/08/2021

L1 / l2 =b1 /b2
6/21 =b1/14
2/7 =b1/14
2×14=7×b1
b1=2×14/7
b1=2×2
b1=4cm is answer

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Asked by admin @ 11/08/2021 in Math viewed by 288 persons

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