Question

10. The measures of two angles of a triangle are 60° and 80°, the measure of third angle will be
(a) 60°
(b) 40°
(C) 80°
(d) 20°​

Answer 1

option b is correct 40°

I hope it helps you

Answer 2

Answer:

Answer is 40°.

Step-by-step explanation:

Sum of triangle is 180°.

1st angle=60°

2nd angle=80°

So,3rd angle=x

=x+60+80=180

=x+140=180

=x =180-140

x = 40°