Question

give me answer of questions number = 6 part = (a)
Explain also....... ​

Answer 1

Answer:

BAO=50°

Step-by-step explanation:

in symmetry both the parts are equal

therefore AOB=90°

AOB+ABO+BAO=180°.....sum of all angles of triangle is180°

40°+ABO+90°=180°

130°+ABO=180

ABO=180-130

---->ABO=50°

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