Question

एक त्रिभुज के दो कोण 40° तथा 80° के है। तीसरा कोण ज्ञात कीजिए।​

Answer 1

Answer:

60°

Step-by-step explanation:

let the third side be X

40 + 80 + X = 180°

120 + X = 180

X = 180-120

X =60°

Answer 2

Answer:

60°

Step-by-step explanation:

angle1+angle2+angle3=180°

40°+80°+angle3=180°

120°+angle3=180°

angle3=180°-120°

angle3=60°