Question

what are vertical angles? angles that are adjacent to each other angles that add up to 90 degrees angles that add up to 180 degrees angles that are opposite of each other when lines intersect

Explanation:

To determine the correct definition of vertical angles, we analyze each option:

• "Angles that are adjacent to each other" describes adjacent angles, not vertical angles.
• "Angles that add up to 90 degrees" are complementary angles.
• "Angles that add up to 180 degrees" are supplementary angles.
• "Angles that are opposite of each other when lines intersect" matches the definition of vertical angles, which are formed by two intersecting lines and are opposite each other.

Answer:

D. Angles that are opposite of each other when lines intersect