Question

which angles are adjacent to each other? ∠11 and ∠5 ∠10 and ∠11 ∠3 and ∠11 ∠9 and ∠7

Explanation:

Step1: Recall the definition of adjacent angles

Adjacent angles are two angles that have a common vertex and a common side, and their non - common sides are on either side of the common side.

Step2: Analyze each pair

• For \(\angle11\) and \(\angle5\): They do not have a common vertex and a common side, so they are not adjacent.
• For \(\angle10\) and \(\angle11\): They have a common vertex and a common side, and their non - common sides are on either side of the common side. So they are adjacent.
• For \(\angle3\) and \(\angle11\): They do not have a common vertex and a common side, so they are not adjacent.
• For \(\angle9\) and \(\angle7\): They do not have a common vertex and a common side, so they are not adjacent.

Answer:

\(\angle10\) and \(\angle11\)