Question

what is the measurement of angle a ​

Answer 1

Answer:

figure A )60 degree.

figure B)90 degree

Answer 2

Answer:

a+a+a = 180

3a= 180

a= 180/3

a= 60

B) if one angle is 45 so another is also 45 (by SAS rule)

so,

a= 180-(45+45)

a= 180-90

a= 90