Question

Please give answers in detail and full explanation

Answer 1

Answer:

1) 50°

2) x= 70°

y = 60°

3) OCB = 32°

Step-by-step explanation:

1)

angle AEC = 180-130

= 50°

angle BED = 50° ( vertically opposite)

angle DBE = 180-(80+50)

= 50°

2) x = 180- (90+20)

x= 70°

let intersection of EC and AD = F

angle AEF = 180- 110

= 70°

Angle DFC = 70° (vertically opposite)

y = 180-(70+50)

y=60°

3) angle ACB = 180-(62+54)

= 64°

angle OCB = 64/2 = 32°

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