What kind of triangle is this

The lengths of the sides of triangles is another common classification for types of triangles. Some examples are equilateral triangles , isosceles triangles and scalene triangles. The following figures show the different types of triangles.

Scroll down the page if you need more explanations and examples of each type of triangle and how to solve problems involving them. A right triangle is a triangle with a right angle i. It is called the hypotenuse of the triangle. The other two sides are called the legs. The lengths of the sides of a right triangle are related by the Pythagorean Theorem. There are also special right triangles. What is the size of the third angle? An acute triangle is a triangle whose angles are all acute i. What type of triangle is this?

An obtuse triangle has one obtuse angle i. The longest side is always opposite the obtuse angle. Example 1: Is it possible for a triangle to have more than one obtuse angle? Triangle type. Obtuse Triangle. What type of triangle is pictured below? Classify the triangle on the left. Back to Geometry. Popular pages mathwarehouse.

Surface area of a Cylinder. Unit Circle Game. Pascal's Triangle demonstration. Create, save share charts. Think you got it? The triangle on the left is an obtuse scalene triangle, while the one on the right is a right isosceles triangle.

An isosceles triangle is a triangle with two congruent sides and one unique side and angle. An equilateral triangle is a triangle with three congruent sides and three congruent angles. A scalene triangle is a triangle with no congruent sides and no congruent angles. An obtuse triangle is a triangle that has an obtuse angle.

An acute triangle is a triangle that has three acute angles. A right triangle is a triangle that has one right angle. Scalene triangles are triangles that have three unique side lengths and three unique angle measures.

A scalene triangle is a triangle that has no equal sides or angles. A true triangle is a shape that has three sides and three angles. The two angles that are equal in an isosceles triangle are the two base angles. An isosceles triangle has two equal sides that meet at a point. The angle made by these two lines meeting is the unique angle. The angles formed by the bases of these lines and a third, unique side, are the two equal angles, called base angles.

What kind of triangle is this? The correct answer is acute isosceles. An isosceles triangle has two congruent sides as shown by the two tick marks and one unique side. The correct answer is equilateral. The correct answer is obtuse isosceles. An isosceles triangle is one with two congruent sides and two congruent angles and one unique side and angle. This triangle has two congruent angles on the bottom.

The correct answer is obtuse scalene. A scalene triangle is one with three unique side lengths and angle measures. Study Guides Flashcards Online Courses. Introduction to Types of Triangles. Acute Triangle We can see that the largest angle in the triangle on the left is 70 degrees.