complementary.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Given:** \( \overline{AB} \perp \overline{BC} \).

**Prove:** \(\angle A\) and \(\angle C\) are complementary.

**Note:** Quadrilateral properties are _not_ permitted in this proof.

---

| Statement               | Reason |
|-------------------------|--------|
| \( \overline{AB} \perp \overline{BC} \) | Given  |

---

**Diagram Explanation:**

The diagram depicts a right triangle with vertices labeled \(A\), \(B\), and \(C\). 

- The line segment \( \overline{AB} \) is perpendicular to \( \overline{BC} \), forming a right angle (90 degrees) at vertex \(B\). This right angle is indicated with a small square at \(B\).

- The triangle is oriented such that \(A\) and \(C\) are the other two vertices, and their position in the triangle signifies the angles to be evaluated as complementary.

**Concepts Used:**

Complementary angles are two angles whose measures add up to 90 degrees. In a right triangle, the two non-right angles are always complementary because the sum of all angles in any triangle is 180 degrees, and the right angle itself accounts for 90 degrees.
Transcribed Image Text:**Given:** \( \overline{AB} \perp \overline{BC} \). **Prove:** \(\angle A\) and \(\angle C\) are complementary. **Note:** Quadrilateral properties are _not_ permitted in this proof. --- | Statement | Reason | |-------------------------|--------| | \( \overline{AB} \perp \overline{BC} \) | Given | --- **Diagram Explanation:** The diagram depicts a right triangle with vertices labeled \(A\), \(B\), and \(C\). - The line segment \( \overline{AB} \) is perpendicular to \( \overline{BC} \), forming a right angle (90 degrees) at vertex \(B\). This right angle is indicated with a small square at \(B\). - The triangle is oriented such that \(A\) and \(C\) are the other two vertices, and their position in the triangle signifies the angles to be evaluated as complementary. **Concepts Used:** Complementary angles are two angles whose measures add up to 90 degrees. In a right triangle, the two non-right angles are always complementary because the sum of all angles in any triangle is 180 degrees, and the right angle itself accounts for 90 degrees.
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