9. Angle F and angle D form a right angle when combined. What is the relation of angles F and D?
A. They are vertical angles
B. They are complementary angles
C. They are supplementary angles
A. They are vertical angles
B. They are complementary angles
C. They are supplementary angles
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Answer:
its b. complementary angles
Step-by-step explanation:
baka angle F : 60° at angle D 30°
60° + 30° = 90°
Two angles are complementary if the sum of their measures is 90°.Each angle is called a complement to each other
Btw Hope it helps po :)