Given: | In Δ ABC, m ∠ C = 90° |
Prove: | ∠1 and ∠ 2 are complementary |
PROOF | |
Statements | Reasons |
1. Δ ABC, m ∠ C = 90° | 1._________________ |
2. m∠1 + m∠2 + m ∠ C = | 2. The sum of ∠ s of a A is 180° |
3.______________________ | 3. Substitution Prop. of Equality |
4. m∠1 + m∠ 2 = | 4. Subtraction Prop. of Equality |
5. | 5.____________________ |
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