RRB NTPC - Geometry One Line Questions & Answers

1. The sum of the interior angles of a polygon with 'n' sides is given by the formula: — (n-2) * 180 degrees

2. What is the angle formed by a tangent and a radius drawn to the point of tangency? — 90 degrees

3. What is the area of a parallelogram with base 'b' and height 'h'? — b * h

4. What is the measure of each interior angle of a regular hexagon? — 120 degrees

5. What is the sum of the exterior angles of any convex polygon? — 360 degrees

6. The sum of the angles in a quadrilateral is: — 360 degrees

7. What is the area of a rectangle with length 'l' and width 'w'? — l * w

8. The area of a circle with radius 'r' is given by the formula: — π * r^2

9. What is the diameter of a circle if its radius is 7 cm? — 14 cm

10. What is the measure of an angle inscribed in a semicircle? — 90 degrees

11. What is the measure of a central angle subtended by an arc that is one-third of the circumference of a circle? — 120 degrees

12. If two angles of a triangle are 45 degrees and 60 degrees, what is the third angle? — 75 degrees

13. What is the measure of each exterior angle of a regular pentagon? — 72 degrees

14. What is the sum of the interior angles of a triangle? — 180 degrees

15. What is the sum of angles around a point? — 360 degrees

16. In a cyclic quadrilateral, the sum of opposite angles is: — 180 degrees

17. A triangle with angles 30, 60, and 90 degrees is a type of: — Right-angled triangle

18. A triangle where one angle is greater than 90 degrees is called an: — Obtuse triangle

19. Which of the following is NOT a type of triangle based on angles? — Isosceles triangle

20. If two lines intersect, the angles opposite each other at the intersection point are called: — Vertically opposite angles

21. What is the property of an equilateral triangle? — All sides and all angles are equal

22. If a line segment divides a triangle into two smaller triangles of equal area, the line segment must be a: — Median

23. In similar triangles, the ratio of their corresponding sides is equal to the ratio of their: — All of the above

24. What is the area of a triangle with base 'b' and height 'h'? — 0.5 * b * h

25. A line that touches a circle at exactly one point is called a: — Tangent

26. The distance from the center of a circle to any point on its circumference is called the: — Radius

27. In an isosceles triangle, the angles opposite the equal sides are: — Equal

28. What is a polygon with 5 sides called? — Pentagon

29. A triangle with all three sides of different lengths is called a: — Scalene triangle

30. What is the perimeter of a rectangle with length 'l' and width 'w'? — 2 * (l + w)

31. What is the total number of diagonals in a polygon with 'n' sides? — n * (n-3) / 2

32. A rhombus with all angles equal to 90 degrees is a: — Square

33. If two triangles are similar, their corresponding angles are: — Equal

34. What is the ratio of the circumference of a circle to its diameter? — π

35. A line segment that connects two points on a circle is called a: — Chord

36. A line segment passing through the center of a circle and whose endpoints lie on the circle is called a: — Diameter

37. What is a quadrilateral with four equal sides and four right angles called? — Square

38. A quadrilateral with at least one pair of parallel sides is called a: — Trapezoid

39. What geometric shape has two parallel sides of unequal length and two non-parallel sides? — Trapezoid

40. What is the length of the diagonal of a square with side length 's'? — s * sqrt(2)

41. What is the perimeter of a square with side length 's'? — 4 * s

42. In a triangle, if two sides are equal, what type of triangle is it called? — Isosceles triangle

43. What is the area of a triangle with sides a, b, and c, and semi-perimeter s, using Heron's formula? — sqrt(s * (s-a) * (s-b) * (s-c))

44. If two parallel lines are intersected by a transversal, the alternate interior angles are: — Equal

45. Which theorem states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides? — Pythagorean Theorem

46. What is the relationship between the angle at the center and the angle at the circumference subtended by the same arc in a circle? — The central angle is double the circumference angle

47. What is the distance between two parallel lines? — The length of the perpendicular segment connecting them

48. What is the relationship between the angles in a linear pair? —

49. The line segment joining the midpoints of two sides of a triangle is parallel to the third side and is: — Half the length of the third side

50. The formula for the circumference of a circle with radius 'r' is: — 2 * π * r

Geometry - One Line Questions