Answer:
see explanation
Explanation:
(14)
the angle corresponding to ∠ 5 , is ∠ 1
Each is in the same position ( the upper left hand corner ) in its group of 4 angles.
(15)
the angle vertical to ∠ 1 is ∠ 3
When 2 lines intersect to make an X , angles on opposite sides of X are called vertical angles