Brian McLogan
Solving a proportion using inverse operations
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
Given a point outside a circle and a tangent line determine the length from the point to center
Learn how to solve problems with tangent line. A tangent line to a circle is a line that touches the circle at exactly one point. The tangent line to a circle makes a right angle with the radius of the circle at the point of its...
Curated OER
How Do You Find Missing Angles in a Triangle With Variables?
Are you working on finding the missing angles of triangles in your class? Consider this video. An instructor uses the triangle sum theorem to create an equation that helps her find the missing angles. She explains each step and writes...
Curated OER
How Do You Use the Solution from an Equation to Evaluate an Expression?
A quick demonstration of how to solve an equation and use that solution to determine another value, this tutorial video could be used in class or at home. The demo acts as a model for solving this type of problem. Have your pupils keep...
Curated OER
How Do You Use the Solution from an Equation to Evaluate an Expression?
A quick demonstration of how to solve an equation and use that solution to determine another value, this tutorial video could be used in class or at home. The demo acts as a model for solving this type of problem. Have your pupils keep...
Curated OER
How Do You Find Missing Angles in a Triangle With Variables?
Are you working on finding the missing angles in triangles in your class? Consider this video. An instructor uses the triangle sum theorem to create an equation that helps her find the missing angles. She explains each step and writes...