Triangles: Using the Sum of the Angles Property
This clip explains how to use the sum of the angles property of triangles to find the measure of an unknown angle when the measure of the other two angles is known.
Triangles: Altitude in Triangles
This clip looks at a feature of isosceles triangles that has to do with altitude (or height). "The altitude is a perpendicular line segment from the base to the vertex of the opposite angle," the clip explains. "The altitude bisects the base and opp...
Triangles: Closer Look at Isosceles Triangles, A
This clip focuses on isosceles triangles, explaining that the equal sides are called the legs, while the remaining side is called the base. The clip notes that the base angles have the same measure, adding that, "
this feature of an isosceles trian...
Weight and Temperature: Fahrenheit and Celsius: Practical Problems
This clip provides practical problems that are solved by applying the formulas for converting between Fahrenheit and Celsius.
Weight and Temperature: Fahrenheit, Celsius and Formulas for Temperature Conversion
This clip introduces the measurement of temperature, explaining the terms Fahrenheit and Celsius in the process. The clip also explains how to convert from one to the other. "To convert from Celsius to Fahrenheit," the clip states, "
we use the for...
Weight and Temperature: Summary: Weight and Temperature
This clip reviews the key points in the lesson on weight and temperature, including conversion between the U.S. Customary System and the Metric System, as well as conversion between Fahrenheit and Celsius.
Angles, Arcs and Sectors: Angles Formed by Intersecting Lines
This clip looks at angles that are formed by two intersecting lines, in the process explaining what constitutes vertical and supplementary angles.
Angles, Arcs and Sectors: Introduction to Angles
This clip explains what constitutes an angle and provides a brief discussion of the fields in which angle measurement is especially critical. The clip then defines a number of terms that are fundamental to understanding angles, including "vertex" an...
Angles, Arcs and Sectors: Calculating Many Angles When Only One is Known
This clip explains how to use what we know about special angle relationships to find the measure of several angles when we known the measure of just one. The explanation covers vertical angles, alternate interior angles, corresponding angles, supple...