Question

Define triangle and write down its parts.​

Answer 1

Step-by-step explanation:

A triangle has three sides, three vertices, and three angles. The sum of the three interior angles of a triangle is always 180°. The sum of the length of two sides of a triangle is always greater than the length of the third side. A triangle with vertices P, Q, and R is denoted as △PQR.

Answer 2

Step-by-step explanation:

A triangle is a close figure which have three sides and three vertex.

The different types of triangle are

1. Acute angle triangle

2. Right angle triangle

3. Obtuse angle triange

4. Isoceles Triangle

5. Equilateral Triangle

6. Scalene triangle