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4th Grade > Mathematics

INTRODUCTION TO GEOMETRY MCQs

Total Questions : 37 | Page 2 of 4 pages
Question 11. A 90-degree angle is also called a ___ angle.
 Discuss Question

:
A 90-degree angle is also called a right angle.
Question 12. What is an angle that measures 360 called?
  1.    Whole angle
  2.    Obtuse angle
  3.    Straight angle
  4.    Right angle
 Discuss Question
Answer: Option A. -> Whole angle
:
A

  • An angle which measures 360 is called a whole angle.What Is An Angle That Measures 360∘ Called?

  • An angle which meaures greater than 180 and less than 270 is called an obtuse angle.What Is An Angle That Measures 360∘ Called?

  • An angle which measures180 is called a straight angle.What Is An Angle That Measures 360∘ Called?

  • An angle which measures90 is called a right angle.What Is An Angle That Measures 360∘ Called?

Question 13. How many degrees are there in a circle? ___ ( write in numerals )
 Discuss Question

:
There are 360 degrees in a circle.
Question 14. What is a shape which has equal sides and equal angles called?
  1.    Irregular shape
  2.    Rectangular shape
  3.    Triangle
  4.    Regular shape
 Discuss Question
Answer: Option D. -> Regular shape
:
D
A shape which has equal sides and equal angles is called a regular shape.
For example, a square is a regular shape. It has all its sides equal and all its interior angles equal to 90 degrees.
What Is A shape Which Has Equal Sides And Equal Angles Call...
A rectangle has its opposite sides to be equal, in general.
Question 15. Objects which have no line of symmetry are called ___ objects.
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:
Objects which have no line of symmetry are called asymmetrical objects.
Question 16. The figure shown below is a regular shape.
The Figure Shown below Is A Regular Shape.
  1.    True
  2.    False
  3.    Triangle
  4.    Regular shape
 Discuss Question
Answer: Option B. -> False
:
B
A shape which has equal sides and equal angles is called a regular shape.
In the figure shown, all sides are not equal. Hence, it is not a regular shape.
Question 17. What is an angle which is less than 180 degrees but more than 90 degrees called?
  1.    Acute angle
  2.    Obtuse angle
  3.    Right angle
  4.    Straight angle
 Discuss Question
Answer: Option B. -> Obtuse angle
:
B
Type of angleDescriptionAcute angleLess than90Right angleEqual to90Obtuse angleGreater than90& less than180Straight angleEqual to180
Thus, an angle that measures less than 180 and greater than 90 is called an obtuse angle.
Question 18.


We can say that the study of geometry starts with a ____.


  1.     line
  2.     point
  3.     angle
  4.     ray
 Discuss Question
Answer: Option B. -> point
:
B

We can say that the study of geometry starts with a point. A point is an exact position in space. It is the basic unit of geometry. Any geometrical figure is a collection of infinite number of points.


Question 19.


In geometry we study about


  1.     shapes
  2.     songs
  3.     angles
  4.     lines
 Discuss Question
Answer: Option B. -> songs
:
A, C, and D

We study about points, lines, angles, shapes in geometry.
Songs are not taught in geometry.


Question 20.


When two lines cross each other at a point we call them ___ lines.


 Discuss Question
Answer: Option B. -> songs
:

When two lines cross each other at a point we call them intersecting lines and the point where they meet is called the point of intersection.


Parallel lines never intersect each other. 


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