![]() Once you have completed these steps, you should now have an isosceles right triangle □. A special right triangle is a right triangle with some regular feature that makes calculations on the triangle easier, or for which simple formulas exist. In other words, each side must have a different length. ![]() The Scalene Triangle has no congruent sides. Figure 2.5.1 shows an isosceles triangle ABC with AC BC. Position of some special triangles in an Euler diagram of types of triangles, using the definition that isosceles triangles have at least two equal sides, i.e. The Isosceles triangle shown on the left has two equal sides and two equal angles. Repeat the above step from point b to point c. In Section 1.6, we defined a triangle to be isosceles if two of its sides are equal.Use your ruler and pencil to draw a line from point a to c.Name the point where the arc passes through the perpendicular line c.Place your compass at o and draw an arc that cuts line ab at both ends and the perpendicular line at one end.Label the point where the two lines now bisect each other, o. ![]()
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