Question

Find the unknown marked angle in each triangle​

Answer 1

Answer:

Using Angle Sum Property -

Sum of all three angles of a triangle = 180°

Given ,

First Angle = 49°

Second Angle = 90°

Third Angle = ?

Let the third angle be x

49° + 90° + x = 180°

139° + x = 180°

x = 180° - 139°

x = 41 °