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If the measure of arc AC is 140°, what is the measure of angle ABC?
Answer

60°

70°

40°

50°

Question

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If the measure of arc AC is 140°, what is the measure of angle ABC?
Answer
		
60°
		
70°
		
40°
		
50°

shayaan_mustafa · Answer

i think we must have to do some constructional work here.

anonymous · Answer

illustration?

shayaan_mustafa · Answer

let me do. wait a while.

anonymous · Answer

|dw:1334161906473:dw|

anonymous · Answer

40 degrees

shayaan_mustafa · Answer

how?? according to me it is 70

shayaan_mustafa · Answer

kindly estimate your work . please. so i could understand.

anonymous · Answer

base on the problem arc AC is a smaller arc

anonymous · Answer

1/2 (m larger arc - m smaller arc ) = angle ABC

shayaan_mustafa · Answer

|dw:1334162793372:dw|my conclusion is look like that.