Question

please give me answer in mathematics​

Answer 1

Step-by-step explanation:

Let the Unknown angle be x

Sum of all angles of a traingle = 180°

x + 60° + 75° = 180°

=> x = 180° - 135° = 45°

Answer 2

Answer:

the measure of the third angle is

180°-(60°+75°)= 180°-135°=45°

(Total measure of a triangle is 180°)