If a ∦ b and t is a line, can we still conclude the following?
∠1 + ∠2 = 180
∠2 + ∠3 = 180
∠3 + ∠4 = 180
∠4 + ∠1 = 180
∠6 + ∠5 = 180
∠5 + ∠8 = 180
∠8 + ∠7 = 180
∠7+ ∠6 = 180
Yes. You can also use vertical angles to establish equalities, such as \angle 1 = \angle 3, and so on.
1 Like