Math, asked by kashish1439, 5 months ago

help me in maths
please

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Answered by jahanvisharma2910200

0

Produce CD to cut AB at E.

Now, ΔBDE, we have

∠CDB =∠CEB+∠DBE

x=∠CEB+40 ………..(1)

In ΔAEC

∠CEB=∠CAB+∠ACE

∠ CEB =48+30=78°

Put in (1)

x=78+40=118°

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