Question 53

In a larger circular pool of 20 feet diameter, two frogs start swimming from east and west ends of the pool (named A & C respectively) towards a worm on the northern edge of the pool at point B. What is the measure of the angle ABC?


The two frogs are at diametrically opposite ends, so when they go towards the worm at point B, it becomes a right angled triangle, as angle in a semi circle is right angle.

=> $$\angle ABC=90^\circ$$

=> Ans - (C)

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