Question

can anybody get me the answer...plz..​

Answer 1

Answer:

< AOC + < COD + < DOB = 180° (as per figure)

(x+10) + (7/2x-5) + (x/2) = 180°

x + 10 + 4 x - 5 = 180°

5 x + 5 = 180°

5x = 180-5

x = 175/5

x = 35°

<AOD = 180° - < DOB

= 180° - 17.5°

= 162.5°