Please help me !! im really confused abt this whole unit

a. 70

b. 45

c. 50

Step-by-step explanation:

sum of the all angles is 360

angle of straight line is 180

Step-by-step explanation:

angle b+45 degree=110 degree (because they are vertically opposite angle and vertically opposite angle are always equal)

angle b=110-45

angle b=65 degree

angle a + angle b + 45 degree = 180 degree (being linear pair)

angle a + 65 + 45 =180

angle a + 110=180

angle a=180-110

angle a=70 degree

angle c + 20 degree=angle a (because they are vertically opposite angle and vertically opposite angle are always equal)

angle c + 20 = 70

angle c = 70 - 20

angle c =50 degree

Note: A linear pair is a pair of adjacent angles formed when two lines intersect.

Hope this helps u !!

answer: 20

step-by-step explanation: