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प्रश्न
If in the given figure, DE || BC.
If AD = 2.8 cm, DB = 21 cm and EC = 4.8 cm, then the value of x is ______.
पर्याय
3.6 cm
2.4 cm
6.4 cm
4.8 cm
MCQ
रिकाम्या जागा भरा
उत्तर
If in the given figure, DE || BC.
If AD = 2.8cm, DB = 21cm and EC = 4.8cm, then the value of x is 6.4 cm.
Explanation:
Given, DE || BC,
∴ `(AD)/(DB) = (AE)/(EC)` ...[by Thales theorem]
∴ `2.8/2.1 = x/4.8`
∴ x = `(2.8 xx 4.8)/2.1`
∴ x = 6.4
Hence, the value of x is 6.4 cm.
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