MCQ Questions for Class 9 Maths Chapter 11 Constructions with Answers

MCQ Questions for Class 9 Maths Chapter 11 Constructions with Answers

MCQs from Class 9 Maths Chapter 11 – Constructions are provided here to help students prepare for their upcoming Maths exam.

MCQs from CBSE Class 9 Maths Chapter 11: Constructions

1) Which of the following angles can be constructed using ruler and compass?
a. 35
b. 40
c. 90
d. 50

Answer/ Explanation

Answer: (c)
Explanation: See the figure below:
MCQ Questions for Class 9 Maths Chapter 11 Constructions with Answers 1

∠POA = 90


2) Which of the following angles can be constructed using ruler and compasses?
a. 35
b. 45
c. 95
d. 55

Answer/ Explanation

Answer: (b)
Explanation: See the figure below:
MCQ Questions for Class 9 Maths Chapter 11 Constructions with Answers 2

ROA = 45


3) Which of these angles we cannot construct it using ruler and compasses?
a. 120
b. 70
c. 60
d. All can be constructed

Answer/ Explanation

Answer: (b)


4) Which of these angles cannot be constructed using ruler and compasses?
a. 120
b. 60
c. 140
d. 135

Answer/ Explanation

Answer: (c)


5) If a, b and c are the lengths of three sides of a triangle, then:
a. a+b>c
b. a-b>c
c. a+b=c
d. a-b=c

Answer/ Explanation

Answer: (a)
Explanation: The sum of two sides of a triangle is always greater than the third side.


6) Which of the following set of lengths can be the sides of a triangle?
a. 2 cm, 4 cm, 1.9 cm
b. 1.6 cm, 3.7 cm. 5.3 cm
c. 5.5 cm, 6.5 cm, 8.9 cm
d. None of the above

Answer/ Explanation

Answer: (c)


7) The side lengths 4cm, 4cm and 4cm can be sides of:
a. Scalene Triangle
b. Isosceles Triangle
c. Equilateral Triangle
d. None of the above

Answer/ Explanation

Answer: (c)
Explanation: Equilateral triangle has all its three sides equal.


8) To construct a bisector of a given angle, we need:
a. A ruler
b. A compass
c. A protractor
d. Both ruler and compass

Answer/ Explanation

Answer: (d)


9) To construct an angle of 60 degrees, we need to draw first:
a. A ray
b. An arc
c. Two rays
d. A straight line

Answer/ Explanation

Answer: (a)
Explanation: To construct an angle of 60 degrees we need to start at the initial point of a ray.


10) If we want to construct a triangle, given its perimeter, then we need to know:
a. Sum of two sides of triangle
b. Difference between two sides of triangle
c. One base angles
d. Two base angles

Answer/ Explanation

Answer: (d)


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