Question

angle b = 60° angle c = 55° find angle a

Answer 1

Answer:

Total sum of angles of triangle is 180 degree

a + b + c = 180

a + 60 + 55 = 180

a = 180-115

a = 65 degree

Answer 2

total angle is =180°

so,angle b+angle c+ angle a=180°

60°+55°+angle a=180°

angle a=180°-115°

angle a =65°