It’s 30 because they are vertical angles which means both sides are congruent
Answer:
1/4
Step-by-step explanation:
1)2²= 4
2)4²= 16
3)3x2/3=2
4)6+2-4/8=1/4
Step-by-step explanation:
the angle ABC = 180 - x, as ABD and ABC are complementary angles on top of the bottom line : all angles around a point on one side of a line are always adding up to 180 degrees.
but because we also know that the sum of all angles in a triangle is 180 degrees too, we can say
180 = ACB + ABC + CAB
180 = y + 180 - x + CAB
0 = y - x + CAB
x = y + CAB
x - y = CAB
therefore, the second answer option is correct.
