Question

A circle touches the y-axis at the point (0, 4) and cuts the x-axis in a chord of length 6 units. The radius of the circle is.

• A. 3
• B. 4
• C. 5
• D. 6

Answer 1

Answer: (C)

5

Answer 2

O’ is centre and from figure,

Radius $( r ) = \sqrt { ( 4 ) ^ { 2 } + ( 3 ) ^ { 2 } } = 5$.