lauranfamily
10.02.2021 •
Mathematics
If AB←→ and DC←→ are perpendicular, then ∠AEC and ∠BEC are what????
The answer choices: right angle or vertical angles
supplementary or complementary
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Ответ:
right angle and complementary
Step-by-step explanation:
Ответ:
Complementary angles
Explanation:
Complementary angles. Because ∠EFB = 90° ⇒ ∠EFA = 90°
∠AFC + ∠EFC = 90°.
Hence, the correct answer is complementary angles.
Step-by-step explanation:
Ответ:
5
Step-by-step explanation:
5