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4th Grade > Mathematics

INTRODUCTION TO GEOMETRY MCQs

Total Questions : 37 | Page 1 of 4 pages
Question 1. We can find our way through a new city without knowing the directions. 
  1.    False
  2.    True
  3.    angles
  4.    lines
 Discuss Question
Answer: Option A. -> False
:
A
When visiting a new city or place, it would help to know the directions to guide us around. A map can be very useful. Itlets us know where we are and can also helpus identify directions that will help in navigating through a city.
Question 2. Identify the angle marked in red.
Identify The angle Marked In Red.
  1.    Acute angle
  2.    Obtuse angle
  3.    Reflex angle
  4.    Right angle
 Discuss Question
Answer: Option C. -> Reflex angle
:
C
The angle shown in the figure is more than a straight angle of 180 degrees andless than a full circle of 360 degrees.
Hence, it is a reflex angle.
Question 3. A straight angle is ___ a reflex angle.
  1.    greater than
  2.    less than
  3.    equal to
  4.    bigger than
 Discuss Question
Answer: Option B. -> less than
:
B
A straight angle measures180°.
A reflex angle measures morethan a straight angle of 180°,but less than a full circle of 360°.
Hence, a straight angle is less than a reflex angle.
Question 4. The opposite edges of a desktop screen are  ___.
  1.    parallel lines
  2.    zigzag lines
  3.    vertical lines
  4.    diagonal lines
 Discuss Question
Answer: Option A. -> parallel lines
:
A
The Opposite Edges Of A Desktop Screen are  ___.
The opposite edges of a desktop screenare always equally spaced and do not meet.
They are thus, examples of parallel lines.
Question 5. When two lines cross each other at a point we call them ___ lines.
 Discuss Question

:
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.
Question 6. Which of the following angles is a straight angle?
  1.    45∘
  2.    90∘
  3.    110∘
  4.    180∘
 Discuss Question
Answer: Option D. -> 180∘
:
D
An angle which measures 180°is called a straight angle.
Which Of The Following Angles Is a Straight Angle?
Question 7. An angle which measures 175 degrees is a/an  ______ angle.
  1.    straight
  2.    acute
  3.    obtuse
  4.    reflex
 Discuss Question
Answer: Option C. -> obtuse
:
C
An angle which measures more than a right angle (90 degrees) and less than a straight angle (180 degrees) is called an obtuse angle.
Since 175 degrees is less than 180 degrees and greater than 90 degrees, it is an obtuse angle.
Question 8. How many right angles make a straight angle?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
:
B
A right angle is equal to 90 degrees.
A straight angle is equal to 180 degrees.
90×2=180
Hence, two right angles make a straight angle.
Question 9. What are lines that are always at the same distance from each other and never intersect called?
  1.    Horizontal lines
  2.    Parallel lines
  3.    Intersecting lines
  4.    Vertical lines
 Discuss Question
Answer: Option B. -> Parallel lines
:
B
What Are Lines That Are Always At the Same Distance From Ea...
When two (or more) lines are alwaysat the same distance from each otherand neverintersect each other, they are called parallel lines.
The railway lines are examples of parallel lines.
Question 10. 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.

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