1
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Let a, b, c be the lengths of sides BC, CA, AB respectively of a triangle ABC. If p is the perimeter and q is the area of the triangle, then what is $p(p-2a) \tan \left(\frac{A}{2}\right)$ equal to ?
2
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
The sides of a triangle are m, n and $\rm \sqrt{m^2+n^2+mn}$. What is the sum of the acute angles of the triangle?
3
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
What is the area of the triangle ABC with sides a = 10cm and c = 4cm angle B = 30°?
4
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
What is the interior angle of a regular octagon of side length 2 cm?
Questions Asked from Properties of Triangles (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Subjects
Mathematics
Algebra
Sets, Relations and Functions Logarithms Quadratic Equations and Inequalities Sequence And Series Binomial Theorem Matrices Determinants Permutations and Combinations Probability Complex Numbers Vector Algebra Three Dimensional Geometry Statistics
Trigonometry
Trigonometric Angles and Equations Inverse Trigonometric Function Height and Distance Properties of Triangles
Coordinate Geometry
Calculus
English
General Studies