Question

8. Two angles of a triangle is 30° and 45°, the third angle is
c) 60° d) 105°
a) 95°
b) 90°​

Answer 1

Answer:

we know that the total angle of a triangle is 180°

so, 180°-30°-45°=180°-75°= 105°

Answer 2

Answer:

d) 105°

Step-by-step explanation:

∠1 + ∠2 + ∠3 = 180° (Angle Sum Property)

30 + 45 + ∠3 = 180°

75 +∠3 = 180°

∠3 = 180° - 75° = 105°