The DAV Class 5 Maths Solutions and **DAV Class 5 Maths Chapter 16 Worksheet 1** Solutions of Triangles offer comprehensive answers to textbook questions.

## DAV Class 5 Maths Ch 16 Worksheet 1 Solutions

Question 1.

How many vertices, sides, and angles does a triangle have?

Solution:

3 vertices, 3 sides, and 3 angles.

Question 2.

Draw a triangle. Name its vertices, sides, and angles.

Solution:

A triangle has 3 vertices = A, B and C

A triangle has 3 sides = AB, BC, CA

A triangle has 3 angles = ∠BAC or ∠A, ∠CBA or ∠B, ∠ACB or ∠C

Question 3.

You are given some triangles. Name its vertices, sides, and angles.

Solution:

Question 4.

Count and write how many triangles are there in each figure.

Solution:

(a) 3

(b) 5

(c) 5

**DAV Class 5 Maths Chapter 16 Worksheet 1 Notes**

Triangle:

A triangle has three sides, three vertices, and three angles.

Line:

A line is an endless straight path that extends in both directions.

An infinite number of lines can be drawn to pass through a given point.

Acute Angle:

An angle that is less than 90° is called acute angle.

Obtuse Angle:

An angle more than 90° but less than 180° is called obtuse angle.

90° or Right Angle:

An angle that measures 90° is called a right angle.

Reflex Angle:

An angle that measures more than 180° is called a reflex angle.

A triangle has three angles ∠BAC or ∠A, ∠CBA or ∠B, ∠ACB or ∠C

A triangle has 3 comers or 3 vertices – A, B and C.

A triangle has 3 sides – AB, BC, CA.