Question

which angles are supplementary to each other? ∠9 and ∠8 ∠6 and ∠14 ∠14 and ∠15 ∠9 and ∠5

Explanation:

Step1: Recall supplementary - angle definition

Two angles are supplementary if their sum is 180 degrees. Adjacent angles that form a straight - line are supplementary.

Step2: Analyze each option

• For ∠9 and ∠8: They are not adjacent and do not form a straight - line, so they are not supplementary.
• For ∠6 and ∠14: They are not adjacent and do not form a straight - line, so they are not supplementary.
• For ∠14 and ∠15: They are adjacent and form a straight - line. So, ∠14+∠15 = 180 degrees, and they are supplementary.
• For ∠9 and ∠5: They are not adjacent and do not form a straight - line, so they are not supplementary.

Answer:

∠14 and ∠15