To explain: the corollary an equilateral
Explanation of Solution
Calculation:
The Isosceles Triangle Theorem: If two sides of a triangle are congruent, then the angles opposite to those sides are congruent.
Corollary 1: An equilateral triangle is also equiangular.
Corollary 2: An equilateral triangle has three
Given:
Prove: y
Proof:
Statements | Reasons |
1. | Given |
2. | Corollary 1 |
3. | Definition of congruent angles |
4. | Sum of angles of a triangle is
5. |
6. | Substitution property |
7. Similarly | Apply in same manner as in step 10 |
Thus, the proof given above shows that how Corollary 2 follows from Corollary 1.
Chapter 4 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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