Question 29

Find the length of AB if $$\angle YBC = \angle CAX = \angle YOX = 90$$.

I. Radius of the arc is given.

II. OA = 5

Solution

Only statement A: Angles OAC, ACB, CBO are right angles => OACB is a rectangle. OC = AB and OC is radius => AB is equal to radius. Hence, we can find the answer using statement A only.

Only statement B: The point B can change even though the point A s fixed at a distance of 5 units on x-axis from origin. Hence, length of AB changes => We cannot find the answer using statement B only.


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