What is an obtuse triangle? Study the definition of an obtuse triangle and its angles. Learn to find the height and area of an obtuse triangle, with examples.

Learn how to identify acute, obtuse, and right triangles and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

There are six types of triangles in geometry. They are called the acute, obtuse, right, isosceles, equilateral, and scalene triangles.

The orthocenter of acute, right, and obtuse triangles have specific properties. 1. The orthocenter of an acute triangle (where all angles are less than 90 degrees) lies inside the triangle.

Learn how to Identify triangles using the Pythagorean inequality theorems, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

Determine if the given side lengths could form a triangle. If yes, classify the triangle as acute, right, or obtuse: 3 in, 4 in, 5 in.

Acute triangle sides can differ, and they fall into three categories; equilateral triangles, isosceles triangles, and scalene triangles. An is a triangle with all sides equal.

Learn how to classify segments inside triangles by looking at several examples and various types of triangles to improve your mathematical knowledge and skills.

Obtuse Triangle: An obtuse triangle is a 3-sided polygon with one angle measuring more than 90 degrees. Pythagorean Theorem Formula: The formula for the Pythagorean Theorem is: a 2 + b 2 = c 2.

Learn how to calculate the area of an obtuse triangle in this informative video lesson. Master the formula for this geometric shape by taking an optional quiz.