RD Sharma Solutions for Class 6 Maths Chapter 12: Triangles Objective Type Questions

The students can self-analyse their areas of weaknesses by practising problems using solutions prepared by the subject experts. The objective-type questions help students glance at the entire chapter at one stretch and to get a hold of various concepts which are covered here. The regular practice of problems using the solutions improves problem-solving abilities, which are important for the exam. The students can use RD Sharma Solutions Class 6 Maths Chapter 12 Triangles Objective Type Questions PDF, which is provided here, to solve exercise-wise problems.

RD Sharma Solutions for Class 6 Maths Chapter 12: Triangles Objective Type Questions

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Access answers to Maths RD Sharma Solutions for Class 6 Chapter 12: Triangles Objective Type Questions

Mark the correct alternative in each of the following:

1. Total number of parts of a triangle is
(a) 3
(b) 6
(c) 9
(d) 1

Solution:

Option (b) is the correct answer.

The total number of parts of a triangle is 6.

2. A perpendicular drawn from a vertex to the opposite side of a triangle is known as
(a) an altitude
(b) a median
(c) an angle bisector
(d) a bisector

Solution:

Option (a) is the correct answer.

A perpendicular drawn from a vertex to the opposite side of a triangle is known as an altitude.

3. A triangle
(a) may not have an altitude
(b) can have at most 3 altitudes
(c) has three altitudes
(d) has only one altitude

Solution:

Option (c) is the correct answer.

A triangle has three altitudes.

4. Line segments joining the vertices to the mid-points of the opposite sides of a triangle are known as
(a) medians
(b) altitudes
(c) heights
(d) angle bisectors

Solution:

Option (a) is the correct answer.

Line segments joining the vertices to the mid-points of the opposite sides of a triangle are known as medians.

5. A triangle whose no two sides are equal is known as
(a) an acute triangle
(b) a scalene triangle
(c) an isosceles triangle
(d) an equilateral triangle

Solution:

Option (b) is the correct answer.

A triangle whose no two sides are equal is known as a scalene triangle.

6. A triangle whose two sides are equal is known as
(a) acute triangle
(b) an isosceles triangle
(c) a scalene triangle
(d) an isosceles triangle

Solution:

Option (b) is the correct answer.

A triangle whose two sides are equal is known as an isosceles triangle.

7. A triangle whose all sides are equal is called
(a) an equilateral triangle
(b) an acute triangle
(c) a right triangle
(d) an isosceles triangle

Solution:

Option (a) is the correct answer.

A triangle whose all sides are equal is called an equilateral triangle.

8. The sum of the length of the sides of a triangle is known as its
(a) area
(b) height
(c) perimeter
(d) region

Solution:

Option (c) is the correct answer.

The sum of the length of sides of a triangle is known as its perimeter.

9. A triangle having all sides of different lengths is known as
(a) scalene triangle
(b) isosceles triangle
(c) an equilateral triangle
(d) an acute triangle

Solution:

Option (a) is the correct answer.

A triangle having all sides of different lengths is known as a scalene triangle.

10. A triangle whose one angle is more than 90° is called
(a) a scalene triangle
(b) a right triangle
(c) an acute triangle
(d) an obtuse triangle

Solution:

Option (d) is the correct answer.

A triangle whose one angle is more than 90° is called an obtuse triangle.

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