brandonwatson187 brandonwatson187

18-07-2021
Mathematics

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Which set of angles are complementary

Which set of angles are complementary class=

Respuesta :

akposevictor akposevictor

23-07-2021

Answer:

A. <ECF and <BCF

Step-by-step explanation:

Complementary angles are angles that add up to give 90°

m<BCE = m<BCA = 90° (right angles)

m<ECF + m<BCF = m<BCA

m<ECF + m<BCF = 90° (Substitution)

Therefore, <ECF and <BCF are complementary angles.

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