MCQ Questions | Class 9 Maths Chapter 11 | Constructions with Answers

MCQ | Constructions Class 9

Check the below NCERT MCQ Questions for Class 9 Maths Chapter 11 Constructions with Answers Pdf free download. MCQ Questions for Class 9 Maths with Answers were prepared based on the latest exam pattern. We have Provided Constructions Class 9 Maths MCQs Questions with Answers to help students understand the concept very well.

Objective Question | NCERT Maths Class 9

NCERT Solutions Class 9 Maths
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	9th
Subject:	Maths
Chapter:	11
Chapters Name:	Constructions
Medium:	English

Ncert Solutions for Class 9 Maths | Objective Type Questions

You can refer to NCERT Solutions for Class 9 Maths Chapter 11 Constructions to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Constructions | Class 9 Maths | NCERT Solutions

Q1.	class 9 maths book pdf The construction of the triangle ABC is possible if it is given that BC = 4 cm, ?C = 60° and the difference of AB and AC is
	A. 3.5 cm
	B. 4.5 cm
	C. 3 cm
	D. 2.5 cm

Ans: 4.5 cm

Q2.	class 9 maths chapter 11 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

Ans: One base angles

Q3.	class 9 maths chapter 11 exercise To construct a bisector of a given angle, we need:
	A. A ruler
	B. A compass
	C. A protractor
	D. Both ruler and compass

Ans: Both ruler and compass

Q4.	class 9 maths mcq ch 11 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

Ans: 5.5 cm, 6.5 cm, 8.9 cm

Q5.	class 9 maths mcq chapter 11 Which of these angles cannot be constructed using ruler and compasses?
	A. 120
	B. 60
	C. 140
	D. 135

Ans: 140

Q6.	class 9 maths mcq Constructions The internal and external bisectors of an angle form a
	A. Acute angle
	B. Straight angle
	C. Right angle
	D. Reflex angle

Ans: Right angle

Q7.	class 9 maths mcq online test The bisector of an angle lies in its
	A. Interior
	B. On the arms of the angle
	C. Any where in the plane
	D. Exterior

Ans: Interior

Q8.	class 9 maths mcq questions Which of the following angles can be constructed using ruler and compass?
	A. 35
	B. 40
	C. 90
	D. 50

Ans: 90

Q9.	class 9 maths mcq sample papers If two circles touches internally then distance between their centres is equal to
	A. difference of radil
	B. not possible to determine
	C. sum of radil
	D. none

Ans: difference of radil

Q10.	class 9 maths ncert solutions Which of the following angles can be constructed using ruler and compasses?
	A. 35
	B. 45
	C. 95
	D. 55

Ans: 45

Q11.	class 9 maths solutions If a, b and c are the lengths of the three sides of a triangle, then which of the following is true?
	A. a + b < c
	B. a – b < c
	C. a + b = c
	D. a + b + c = 0

Ans: a – b < c

Q12.	class 9 ncert maths book With the help of a ruler and compasses, which of the following is not possible to construct?
	A. 70°
	B. 60°
	C. 135°
	D. 90°

Ans: 70°

Q13.	class 9 ncert maths book pdf Which of these angles we cannot construct it using ruler and compasses?
	A. 120
	B. 70
	C. 60
	D. All can be constructed

Ans: 70

Q14.	class 9 ncert maths book pdf download Which of the following angles can be constructed using ruler and compasses?
	A. 35
	B. 45
	C. 95
	D. 55

Ans: 45
Hint:
See the figure below:
MCQ Questions for Class 9 Maths Chapter 11 Constructions with Answers

ROA = 45°

Q15.	class 9 ncert maths chapter 11 Which of the following angle can be constructed with the help of a ruler and a pair of compasses?
	A. 35°
	B. 40°
	C. 37.5°
	D. 47.5°

Ans: 37.5°

Q16.	class 9 ncert maths chapter 11 exercise 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

Ans: A ray
Hint:
To construct an angle of 60 degrees we need to start at the initial point of a ray.

Q17.	class 9 ncert maths Constructions pdf The side lengths 4 cm, 4 cm and 4 cm can be sides of:
	A. Scalene Triangle
	B. Isosceles Triangle
	C. Equilateral Triangle
	D. None of the above

Ans: Equilateral Triangle
Hint:
Equilateral triangle has all its three sides equal.

Q18.	class 9 ncert maths solutions 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

Ans: a + b > c
Hint:
The sum of two sides of a triangle is always greater than the third side.

Q19.	class 9 ncert maths solutions chapter 11 Which of these angles we cannot construct it using ruler and compasses?
	A. 120
	B. 70
	C. 60
	D. All can be constructed

Ans: 70

Q20.	mcq for class 9 maths chapter 11 To construct a ?ABC in which BC = 10 cm and ?B= 60 degrees and AB + AC = 14 cm, then the length of BD used for construction.
	A. 7 cm
	B. 14 cm
	C. 20 cm
	D. 10 cm