Question

pls answer this correctly​

Answer 1

Answer:

65

Step-by-step explanation:

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Answer 2

Answer:

hey mate!

Step-by-step explanation:

∠ADC= 21

∠AOC

(Angle subtended by a chord on mayor area is half of that subtended on center)

∴∠ADC= 21×130=65 ∘

Now, ADCB is cyclic quadrilateral ⇒

Sum of opposite Angles is 180 ∘

∴∠ABC+∠ADC=180 ∘

∠ABC+65=180 ∘

∠ABC=115 ∘

hope it helps

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