I need help with this problem, I don’t know what theorems to use.

Given:
TC, PD, TP tangent to circle k(O) at C, D, and E respectively.
TC ∥ PD
Prove:
TO ⊥ PO

Here is a hint:

Use the Linear Pair Perpendicular Theorem.

This states that when two straight lines intersect at a point and form a linear pair of equal angles, they are perpendicular!  Good Luck!

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.