This property is equivalent to two angles of the triangle being equal. An isosceles triangle therefore has both two equal sides and two equal angles. The name. In geometry, an isosceles triangle is a triangle that has two sides of equal length. Sometimes it is specified as having exactly two sides of equal length, and. Equilateral, Isosceles and Scalene. There are three special names given to triangles that tell how many sides (or angles) are equal. There can be 3, 2 or no.
Try this Drag the orange dots on each vertex to reshape the triangle. Notice it always remains an isosceles triangle, the sides AB and AC always remain equal in. The following are triangle classifications based on sides: Scalene triangle: A triangle with no congruent sides. Isosceles triangle: A triangle with at least two. Triangles. A triangle has three sides and is made of straight lines. A triangle may be classified An isosceles triangle may be right, obtuse, or acute (see below).
AN ISOSCELES RIGHT TRIANGLE is one of two special triangles. (The other is the 30°°° triangle.) The student should know the ratios of the sides.