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प्रश्न
In the given figure, AB || EF. If AB = 24 cm, EF = 36 cm and DA = 7 cm, then AE equals
पर्याय
2.5 cm
10.5 cm
3.5 cm
`14/3` cm
MCQ
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उत्तर
3.5 cm
Explanation:
Given: AB = 24, EF = 36, DA = 7.
Let AE = x.
Then DE = DA + AE = 7 + x.
`7/(7 + x) = 24/36`
`7/(7 + x) = 2/3`
21 = 2(7 + x)
21 = 14 + 2x
2x = 21 – 14
2x = 7
`x = 7/2`
x = 3.5 cm
The length of AE is 3.5 cm.
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