Question

Helppp meeee plzzzzz​

Answer 1

80

Explanation:

All the angles of a triangle should add up to 180. So, 180 - 77 is 103. 103 - 23 is 80. The answer is 80.

Answer 2

77°+ 23°+angle b=180°[by angle sum property]

100°+angle b=180°

angle b=180°-100°

angle b=80°