Question

Bro can anyone help me with this!

Answer 1

Answer:

3. i) AOD+AOC= 180° (Linear pair)

AOD= 180-42 =138°

ii) BOD= AOC= 42° (Vertically opposite angles)

iii) BOC = AOD =138° (Vertically opposite angles)

4. i) x= 180-(75+40)=65°

z=40°

y=180-40= 140°

ii) y=58°

x= 180-58= 122°

z=x=122°

Answer 2

Answer:

3

(i)

angle AOD + angle AOC = 180°

=> angle AOD = 180° - 42° = 138°

(ii)

angle AOC = angle BOD = 42°

(iii)

angle COB + angle AOC = 180°

=> angle COB = 180°- angle AOC

=> angle COB = 180°-42° = 138°

4

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