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प्रश्न
In figure given ABCD is a rectangle, the value of CE is ____________.
पर्याय
1 cm
2 cm
3 cm
4 cm
MCQ
रिकाम्या जागा भरा
उत्तर
In figure given ABCD is a rectangle, the value of CE is 4 cm.
Explanation:
Since ABCD is a rectangle
∴ BC = AD = 8 cm and B = 90°
In rt `angle "CBE, cos" 60^circ = "CE"/"BC"`
`=> 1/2 = "CE"/8`
`therefore "CE" = 8/2 = 4 "cm"`
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