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In the given fig. DE || BC, LADE =70° and L BAC=50°, then angleLBCA |
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Answer» Answer: ade=abc=70 DEGREE( CORRESPONDING angles) bac=50 degree abc+bac+bca=180. angle SUM property 70+50+bca=180 120+bca=180 angle bca=180-120=60 |
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