1
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the equation of the circle which touches both the axes in the first quadrant and the line y - 2 = 0?
A
x2 + y2 - 2x - 2y - 1 = 0
B
x2 + y2 + 2x + 2y + 1 = 0
C
x2 + y2 - 2x - 2y + 1 = 0
D
x2 + y2 - 4x - 4y + 4 = 0
2
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

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).

What are the coordinates of the center of the circle?
A
(-2, -50)
B
(-50, -20)
C
(-24, -58)
D
(-58, -24)
3
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

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?
A
r < 10
B
10 < r < 30
C
30 < r < 60
D
r > 60
4
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the radius of the circle 4x2 + 4y2 - 20x + 12y - 15 = 0?
A
14 units
B
10.5 units
C
7 units
D
3.5 units
EXAM MAP