1
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Direction: Consider the following for the next two (02) items that follow.
A circle is passing through the points (5, -8), (-2, 9) and (2, 1).
If r is the radius of the circle, then which one of the following is correct?
2
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
What is the radius of the circle 4x2 + 4y2 - 20x + 12y - 15 = 0?
3
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
A chord subtends an angle 120° at the centre of a unit circle. What is the length of the chord?
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