Intro to Scalene, Isosceles, and Equilateral Triangles
Read this topicExplanations 4
- Triangles can be classified into three types: Equilateral, isosceles, and scalene. An Equilateral triangle is just what it sounds like: a triangle with all its sides equal. Beca…
By Daniel Liu, Alex Federspiel
- All triangles can be categorized into two mutually exclusive classes of triangles: isosceles and scalene. An isosceles triangles has at least two sides which are equal in length…
By Jesse Zhang
- Triangles are usually divided into three types based on the the lengths of their sides: 1)Equilateral1) Equilateral1)Equilateral 2)Isosceles2) Isosceles2)Isosceles 3)Scalene3) S…
By Muhammad Hamza Waseem, Devarsh Ruparelia, Alex Federspiel
- Here is some extra practice on identifying different types of triangles based on their sides. Be warned, this worksheet uses variables instead of numbers; just assume each varia…
By Freya Edholm
Problems 10
- If a triangle has sides with length 8 cm, 8 cm, and 8 cm, what type(s) of triangle is it?
- Let ABCABCABC be an equilateral triangle with side length 111. This triangle is rotated by some angle about its center to form triangle DEFDEFDEF. The intersection of ABCABCABC …
- As soon as the new tiger arrived at the zoo, it began to race around its cage (which was in the shape of an isosceles triangle). If two sides of this triangle had lengths of 100…
- In a scalene triangle abcabcabc, the angle ∠cba\angle{cba}∠cba is congruent to which of the following?
- If a triangle has angle measures of 65∘,65∘,65^{\circ}, 65^{\circ},65∘,65∘, and 50∘50^{\circ}50∘, what type of triangle is it?
- If a triangle has angle measures of 60∘,60∘,60^{\circ}, 60^{\circ},60∘,60∘, and 60∘60^{\circ}60∘, what type of triangle is it?
- If a triangle has angle measures of 65∘,75∘,65^{\circ}, 75^{\circ},65∘,75∘, and 40∘40^{\circ}40∘, what type of triangle is it?
- If, in isosceles triangle ABC, angle A=30∘A = 30^{\circ}A=30∘, and angle B is obtuse, what is the measure of angle C?
- If a triangle has side lengths of 555, 121212, and 131313, what type of triangle is it?
- If an isosceles triangle has a perimeter of 40 units, what is the number of possible combinations for the base (unique) side of the triangle, assuming all sides have length that…