Proof: Perpendicular to Angle
Let's prove the following theorem:
if AB ⊥ BC, then m∠ABC = 90
Proof:
Proof Table
# |
Claim |
Reason |
1 |
∠ABC is a right angle |
if AB ⊥ BC, then ∠ABC is a right angle |
2 |
m∠ABC = 90 |
if ∠ABC is a right angle, then m∠ABC = 90 |
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