Question

Find the third angle of the triangle if two angles are respectively 30◦

,80​

Answer 1

Step-by-step explanation:

third angle be X

30+80+X=180

110+X=180

X=180-110

X=70 degree

Answer 2

Answer:

70°

Step-by-step explanation:

Sum of all angles=180° Angle Sum Property

Therefore,

80° + 30° + x= 180°

180°-(80°+30°)

= 70°