Question

17) In given figure, the measure of <BAC is
(a) 60° .
(6) 50 .
(C) 70° .
(d) 80°.
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Answer 1

Answer:

b 50°

since side ac is equal to side bc

thus angle a is equal to angle b

2x + 20° =50°

x=50-30/2

x=20/2

x=10°