फाइंड द वैल्यू ऑफ एक्स इन फिगर गिवन
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Step-by-step explanation:
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
o
Put in (1)
x=78+40=118
o
.
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