5.1 Angles of Triangles
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The triangle has a pair of congruent sides, so it is isosceles. By measuring, the angles are 55°, 55°, and 70°. So, it is an acute isosceles triangle.
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The triangle has a pair of congruent sides, so it is isosceles. By measuring, the angles are 55°, 55°, and 70°. So, it is an acute isosceles triangle.
The Six Trigonometric Functions. Consider a right triangle that has an acute angle θ. (the Greek letter theta). The three sides of the triangle.