Most important basic geometry mcqs with answers for all classes and one paper test preparation online.
Geometry MCQs with Answers
Who is known as the Father of Geometry?
- Kepler
 - Euclid
 - Pythagoras
 - Newton
 
An angle = 90 degree is called
- Triangle
 - right angle
 - Obtuse angle
 - None
 
Work done when the angle is 90 degree
- Zero
 - Max.
 - Min.
 - Negative
 
Explanation: When cosθ = 90°, the value of cosθ is zero and so the work done is always zero.
If the sum of two angles 90 then angles are called?
- Right angle
 - Reflex angle
 - Complementary angle
 - supplementary angle
 
If the sum of two angles is 180 they are called?
- Right angle
 - Reflex angle
 - Complementary angle
 - supplementary angle
 
An angle that is greater than 90 but less than 180 is called a ____ angle.
- acute
 - obtuse
 - reflex
 - none of the above
 
Pie-Chart is suitable to divide the components of factor in:
- Sectors
 - Percentage
 - Angles
 - All of these
 
A triangle that has 3 equal angles is called:
- Isosceles
 - Right Angle
 - Equilateral
 - Scalene
 
Sum of the interior angles of a polygon:
- 270 (n-2)
 - 180 (n-2)
 - 360 (n-2)
 - 90 (n-2)
 
If diameter of a circle is 5m. Find Radius of circle ?
- 2.5 meters
 - 2.9 meters
 - 3.5 meters
 - none
 
Perimeter of a triangle whose lengths 10.5 cm, 6.5 cm and 7 cm is:
- 14 cm
 - 24 cm
 - 24.5 cm
 - 26 cm
 
The perimeter of a book is 100cm. If its width is 22cm, its length is:
- 38cm
 - 32cm
 - 28cm
 - 22cm
 
Assumptions related to geometrical figures are called
- Postulates
 - Axioms
 - Corollary
 - Therein
 
The centroid of a triangle LMN with vertices L(1. 1. 1), M(3, 3, 3), N(5, 5, 5) is the point
- (3 3 3)
 - (2.5 2.5 2.5)
 - (2.2.2)
 - None of these
 
______ are those angles whose terminal sides coincide with co-ordinate axis
- quadrantal angles
 - Conterminal angles
 - adjacent angles
 - All of these
 
The perimeter of square whose side is 2.5 cm long is.
- 10 cm
 - 5 cm
 - 6.25 cm
 - none of these
 
Area of rectangular garden is 1500 m². The length of garden is 500m find the width of garden
- 300 m
 - 500 m
 - 100 m
 - none of these
 
A sequence is called arithmetic, if it has:
- Common difference
 - common ratio
 - addition
 - none of these
 
If the pth term of an AP is q and the qth term is p, prove that its nth term is (p + q – n).
- twice of pth term
 - 2(p + q)
 - (p + q – n)
 - none of these
 
Supplementary of 123 degree is:
- 50
 - 55
 - 57
 - 29
 
Angles greater than zero degree and less than 90 degrees are called
- Obtuse angles
 - Acute angles
 - Right angles
 - None
 
The measure of an angle inscribed in a semicircle is equal to :
- 60o
 - 180o
 - 360o
 - 90o
 
The triangle where all side is different in length is called ____ triangle?
- scalene
 - isosceles
 - acute angle
 - none
 
If a triangle has Angle A 30 degrees, what will be the measurement of remaining two Angels?
- 90:60
 - 75:75
 - 70:80
 - All of these
 
The area of a triangle will be a=1m, b = 2m, c = 3m, a,b,c being lengths of respective sides.
- 0 sq m
 - 2 sq m
 - 3 sq m
 - Both A and B 
 
The tangent at any point of the circle to the radius through the point of content is___
- perpendicular
 - parallel
 - adjacent
 - chord
 
What is the ratio of the circumference of a circle to its radius?
- 2π
 - π/2
 - π
 - none of these
 
What is the ratio of the diameter of the circle to its circumferences?
- 1 : π
 - 2: π r
 - π : r
 - d : 2π
 
The graph of 2x-4y +8=0 crosses the x-axis is:
- -8
 - +4
 - +8
 - -4
 
The value of (1-secθ)(1+secθ) is equal to
- sec^2 θ
 - 2 sec θ
 - cos ^2 θ
 - tan^2 θ
 
the value of log (36)/ log (6) is____
- 1
 - 2
 - 3
 - 4
 
The value of (1- secθ)(1+ secθ) is equal to___
- sec^2 θ
 - 2sec^3 θ
 - cos ^2 θ
 - tan^2 θ
 
The chord passing through the center of the circle is known as ____
- diameter
 - circumference
 - radius
 - none
 
Straight line joining any two points of the circumference of a circle is called
- Chord
 - Sector
 - Radious
 - Segment
 
Find the radius of the sphere.
- 4 cm
 - 8 cm
 - 16 cm
 - 18 cm
 
How many cubes can be cut of 1cm having dimensions 10 x 12 x 15 cm?
- 900
 - 200
 - 2000
 - 1800
 
If two sides of a triangle are of equal length, then it is called.
- Scale triangle
 - Isosceles triangle
 - Equilateral triangle
 - none of these
 
What is the ratio of the circumstance of a circle to its radius?
- 2π
 - π/2
 - 2πr
 - None of these
 
complementary angles are angles whose measure have a sum equal to?
- 90 degree
 - 120 degree
 - 180 degree
 - none
 
If you join two triangles together to form a square, the triangle should be:
- equilateral
 - acute scalene
 - right angle isosceles
 - none
 
The area of the circle is:
- πr^2
 - π^2r^2
 - π^2r
 - None
 
The area of the triangle is calculated by the formation:
- 1/2 (bxh)
 - 1/2 (hbxh)^2
 - 1/4 (bxh) 1
 - 1/4 (bxh)
 
Angles that are less than 180(degree) and greater that 90 (degree) are called :
- reflex angles
 - obtuse angles
 - acute angles
 - right angles
 
Expression ( a+b)^2 = ?
- a^2 +2ab +b^2
 - a^2 -2ab +b^2
 - a^2 + b^2
 - None
 
The number of diagonals to quadrilateral has?
- Zero
 - One
 - Three
 - Two
 
A polygon having 10 sides is called :
- decagon
 - Triangle
 - circle
 - None
 
A polygon which consist of 8 sides is called :
- Nonagon
 - Decagon
 - Octagon
 - None
 
A polygon having 4 sides is called
- Hexagon
 - Pentagon
 - Decagon
 - Quadrilateral
 
The ratio of two supplementary angles is 2:1. The difference between these two angles is?
- 130∘
 - 120∘
 - 110∘
 - 140∘
 
An angle measuring less than 90 degree is called?
- Obtuse angle
 - Right angle
 - Acute angle
 - Straight angle
 
In a number system with base 2, the number of digits used are
- 1
 - 2
 - 10
 - None
 
In a number system with base 8, the number of digits used are
- 7
 - 10
 - 8
 - none
 
An angle whose measure is greater than 180 but less than 360
- Reflex angle
 - Complete angle
 - Obtuse angle
 - Acute angle
 
What name is given to a 7-sided shape?
- Hexagon
 - octagon
 - heptagon
 - triangle
 
The three geometric means between 2 and 31 are
- 6,8,10
 - 4,8,16
 - 6,10,14
 - none
 
Find the area of circle of diameter 7 cm .
- 4.5 cm
 - 3.2 cm
 - 3.5 cm
 - 14 cm
 
If tangent of theta is greater than 0 then it lies in which quadrant?
- I
 - II
 - III
 - IV
 
If the area of a square is 49 2cm, its one side will be:
- 7 cm
 - 16 cm
 - 18 cm
 - 20 cm
 
Which shape is the odd one out? circle, square, triangle, hexagon
- circle
 - square
 - triangle
 - hexagon
 
If the radius of the circle increased 4 times, then its area increased should be?
- 8 times
 - 12 times
 - 16 times
 - none of these
 
If a line intersects two coplanar lines, then the two internal angles on the coplanar lines are called:
- complementary
 - supplementary
 - obtuse
 - none of the above
 
What will be the ratio between the area of two circles if the ratio between the radius of these circles is 1:3?
- 1:3
 - 3:1
 - 1:9
 - 3:9
 
Read More: Important Mathematics MCQs and Statistics MCQs of all topics for any test preparation.