Instructional Video4:12
Curated OER

How Do You Find a Scale Factor in Similar Figures?

6th - 10th
Three angles of one triangle are equal to the corresponding angles in another triangle. Use a ratio of corresponding sides to find the scale factor. Actually, there are two scale factor values. The instructor will explain how to get both...
Instructional Video4:48
Curated OER

How Do You Find a Scale Factor in Similar Figures?

6th - 12th
Three angles of one triangle are equal to the corresponding angles in another triangle. Use a ratio of corresponding sides to find the scale factor. Actually, there are two scale factor values. The instructor will explain how to get both...
Instructional Video5:44
Curated OER

How Do You Find Missing Measurements of Similar Figures Using a Scale Factor?

6th - 8th
Similar figures have corresponding sides and corresponding angles. With this in mind, missing values can be found by using a scale factor. Not sure how to do that? Watch this video as the instructor illustrates how to set up the known...
Instructional Video7:31
Curated OER

How Do You Identify Corresponding Parts in Congruent Triangles?

6th - 10th
Congruent, corresponding, congruent corresponding. If two figures are congruent, then their corresponding sides and corresponding angles are congruent. Is this to be believed? Watch this video and see if the proof is in the pudding.
Instructional Video6:22
Curated OER

How Do You Find Missing Measurements of Similar Figures Using a Proportion?

6th - 8th
Two similar triangles have the same angles, but their legs have different lengths. This means their angles are congruent, and thusly, their corresponding sides are congruent. So there is a missing measurement that needs to be found. Set...