Question

the two angle of a triangle are 42° and 35°,the third angle is​

Answer 1

Step-by-step explanation:

42+35+X= 180⁰(ASP)

77+X= 180⁰

X=180⁰-77

X=103⁰

Answer 2

Answer:

103°

Step-by-step explanation:

we know that sum of all int. angles of a ∆ is 180° .

A/q

→ A1 + A2 + A3 = 180°

→ 42° + 35° + A3 = 180°

→ A3 + 77° = 180°

→ A3 = 180° - 77°

→ A3 = 103°

Hence,

3rd angle is 103° .