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More Lessons for GMAT Math

Math Worksheets

Examples, solutions, and videos that will help GMAT students review some questions on the altitude of a triangle.

The following diagrams show the altitude of an acute triangle and an obtuse triangle. Scroll down the page for more examples and solutions.

The following diagrams show the orthocenter of an acute triangle and an obtuse triangle. Scroll down the page for more examples and solutions.

**What is the altitude of a triangle?**

The altitude of a triangle is a line segment from a vertex that is perpendicular to the opposite side. A triangle has three altitudes. The point of concurrency is called the orthocenter.

The orthocenter can be inside, on, or outside the triangle based upon the type of triangle.

**The Altitudes of a Triangle**

This video defines an altitude and orthocenter of a triangle.
**Constructing an Altitude of a Triangle**
**Altitude of a Triangle - Geometry Help**

Students learn the definition of an altitude of a triangle,**How to Find the Altitude of a Right Triangle?**
**Isosceles Triangle Properties**

In isosceles (and equilateral) triangles, a segment drawn from the vertex angle to the opposite side is the altitude, angle bisector and median. Isosceles triangle properties are used in many proofs and problems where the student must realize that, for example, an altitude is also a median or an angle bisector to find a missing side or angle.

Theorem: In an isosceles triangle ABC the median, bisector and altitude drawn from the angle made by the equal sides fall along the same line.

More Lessons for GMAT Math

Math Worksheets

Examples, solutions, and videos that will help GMAT students review some questions on the altitude of a triangle.

The following diagrams show the altitude of an acute triangle and an obtuse triangle. Scroll down the page for more examples and solutions.

The following diagrams show the orthocenter of an acute triangle and an obtuse triangle. Scroll down the page for more examples and solutions.

The altitude of a triangle is a line segment from a vertex that is perpendicular to the opposite side. A triangle has three altitudes. The point of concurrency is called the orthocenter.

The orthocenter can be inside, on, or outside the triangle based upon the type of triangle.

This video defines an altitude and orthocenter of a triangle.

Students learn the definition of an altitude of a triangle,

In isosceles (and equilateral) triangles, a segment drawn from the vertex angle to the opposite side is the altitude, angle bisector and median. Isosceles triangle properties are used in many proofs and problems where the student must realize that, for example, an altitude is also a median or an angle bisector to find a missing side or angle.

Theorem: In an isosceles triangle ABC the median, bisector and altitude drawn from the angle made by the equal sides fall along the same line.

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