Question

Q.No.4. Two angles of triangle are 45° and 55º. Find the measure of third angle
Section (C) Short Answer Type Questions 30 X 3M = 09 Marks​

Answer 1

Answer:

third angle = 80°

Step-by-step explanation:

sum of all angles in triangle = 180°

third angle = 180°- 45°- 55° = 80°

Answer 2

Answer:

The measure of the third angle is 80°.

Step-by-step explanation:

Let the measure of the third angle be x°.

We know that,

Sum of all angles of a triangle = 180°

=> 45° + 55° + x° = 180°

=> 100° + x° = 180°

=> x° = 180° - 100°

=> x° = 80°

Hence , the measure of the third angle of the triangle is 80°.