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More Lessons for High School Regents Exam

Math Worksheets

High School Math based on the topics required for the Regents Exam conducted by NYSED.

The following diagram shows the medians of a triangle. Scroll down the page for more examples and solutions of how to construct the median of a triangle.

**Medians of a Triangle and their properties**

The median is a line segment that joins a vertex and the midpoint of the opposite side of a triangle.

A triangle has three medians.

The point of concurrency of the medians is called the centroid.

The centroid is the center of mass of an object of uniform density in the shape of a triangle.

The object will balance on any line through the centroid.

The centroid is two-thirds the distance from the vertices to the midpoint on the opposite side.

**Constructing a Median**

A median is a line segment from the vertex to the midpoint of the opposite side in a triangle.

In every type of triangle, the median will be contained within the polygon, unlike altitudes which can lie outside the triangle.

When constructing a median, we first find the midpoint of the side opposite the desired vertex, then use a straightedge to connect the midpoint and the vertex.

**How to construct the three medians of an acute triangle?**

How to construct a midpoint using a compass?

The meeting point of the three medians will form the centroid of the triangle.

**Constructing a Median of a Triangle**

Using a straight edge and compass constructing a median of a triangle**Constructing a median with a compass**

1. Open the compass past the estimated midpoint of the side. Strike an arc.

2. Keeping the same setting, move to the vertex on the opposite side of the side you are working with.

3. Strike an arc such that it intersects the first arc twice.

4. Use a straightedge to find the midpoint of the side.

5. Draw a segment from that midpoint to the opposite vertex.

Do this for all three sides and you'll find the centroid of the triangle.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

More Lessons for High School Regents Exam

Math Worksheets

High School Math based on the topics required for the Regents Exam conducted by NYSED.

The following diagram shows the medians of a triangle. Scroll down the page for more examples and solutions of how to construct the median of a triangle.

The median is a line segment that joins a vertex and the midpoint of the opposite side of a triangle.

A triangle has three medians.

The point of concurrency of the medians is called the centroid.

The centroid is the center of mass of an object of uniform density in the shape of a triangle.

The object will balance on any line through the centroid.

The centroid is two-thirds the distance from the vertices to the midpoint on the opposite side.

A median is a line segment from the vertex to the midpoint of the opposite side in a triangle.

In every type of triangle, the median will be contained within the polygon, unlike altitudes which can lie outside the triangle.

When constructing a median, we first find the midpoint of the side opposite the desired vertex, then use a straightedge to connect the midpoint and the vertex.

How to construct a midpoint using a compass?

The meeting point of the three medians will form the centroid of the triangle.

Using a straight edge and compass constructing a median of a triangle

1. Open the compass past the estimated midpoint of the side. Strike an arc.

2. Keeping the same setting, move to the vertex on the opposite side of the side you are working with.

3. Strike an arc such that it intersects the first arc twice.

4. Use a straightedge to find the midpoint of the side.

5. Draw a segment from that midpoint to the opposite vertex.

Do this for all three sides and you'll find the centroid of the triangle.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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