Answer
Acute equilateral triangle
Work Step by Step
1. Since all angles are less than 90° it is acute angled
2. All sides and angles are congruent , so it is equilateral.
It is acute equilateral triangle.
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 1 - Trigonometric Functions - Section 1.2 Angle Relationships and Similar Triangles - 1.2 Exercises - Page 16: 27
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