Question

20.12.20, 15.20,16,
Q-3 Do as directed:
1. Two angles of a triangle are 30 and 80 Find the third angle.​

Answer 1

Answer:

Tried angle is 70

Step-by-step explanation:

30 +80=110

180-110=70

Answer 2

Answer:

170°

Step-by-step explanation:

sum of all the three side of triangle is 180°

since 1st and 2nd angle are given as 30 and 80 respectively let the 3rd angle be x

therefore, 1st angle +2nd angle+ 3rd angle =180°

30° + 80 + x = 180°

110° + x = 180°

x = 180° - 110°

x = 170°

so, the third angle = 170°