Question

please tell this anwer​

Answer 1

60+55+a=180(triangle property)

a=180-115

a=65

so

b=180-65=115(linear pair)

and then

angle b+angle c+40=180(triangle property)

and

115+c+40=180

c=180-155

=25°ans

so

a=65

b=115

c=25ans