Question

In right angled triangle ABC,one of the angles other than the right angle is 40°.show the third angle is 50°​

Answer 1

Step-by-step explanation:

Sum of all angles of a triangle = 180° (Angle sum property)

First angle of triangle = 90° (given)

Second angle of triangle = 40°

Let third angle of triangle = x

According to question ,

90° + 40° + x = 180°

= 130° + x = 180°

= x = 180° - 130°

= x = 50°

Therefore , third angle of triangle = 50°

Hence proved