Identify the missing parts in the proof. Given: ∠ABC is a right angle. DB bisects ∠ABC. Prove: m∠CBD = 45° A: B: C: D:

Question

Revolt · Accepted Answer

given; Selection 1: given; Selection 2: measure of angle ABC = 90; Selection 3: angle addition postulate; Selection 4: 2 times the measure of angle CBD = 90

Introduction to Proof

Identify the missing parts in the proof. Given: ∠ABC is a right angle. DB bisects ∠ABC. Prove: m∠CBD = 45° A: B: C: D:

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