Question

1. what is the same as writing that \angles 5 and 6 are supplementary adjacent angles\?

image of angles 5 and 6 with a common vertex and side
options:

• angles 5 and 6 are next to each other and sum up to 90°.
• angles 5 and 6 are not next to each other and sum up to 180°.
• angles 5 and 6 are next to each other and sum up to 180°.
• angles 5 and 6 are not next to each other and sum up to 90°.

Explanation:

Adjacent angles are "next to each other" (share a common side/vertex). Supplementary angles sum to $180^\circ$. The statement combines both traits.

Answer:

Angles 5 and 6 are next to each other and sum up to 180°.