Question

if angle A in quadrilateral Abcd is 80 degrees and there is a diagnol AC then will the diagnol bisect angle A and so is angle BAC 40 degrees? ​

Answer 1

Answer:

yes angle BAC is 40 degrees

Step-by-step explanation:

In quadrilateral ABCD,

angle A =80 , diagonal AC Is diagonal of quadrilateral ABCD and angle bisector of Angle A

so, it divides angle A into angle BAC and angle DAC

so, m∠BAC=m∠DAC=1/2∠A

m∠BAC=1/2∠A

m∠BAC=1/2×80

=40

Therefore, m∠BAC=40

Hence proved.

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