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If ABC is an arc of a circle and angle ABC= 135

then the ratio of arc abc to circumference?

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then the ratio of arc abc to circumference?

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Let O be the center of the circle.

Also, let arc ABC subtend angle APB in other segment of circle.

Now, Quadrilateral ABCP forms cyclic quadrilateral.

So, m<ABC + m<ABP = 180

So, 135 + m<ABP = 180

So, m<ABP = 180 - 135 = 45

So, m<AOB = 2

Now, length of arc(L) =

180

So,

So,

So,