Area of a Rectangle - Geometry Help

How on earth is one to find the area of a rectangle when he doesn't know the width? Using the diagonal of the rectangle, the length, and the Pythagorean Theorem the missing side is determined and the area is discovered. This clip is extremely slow and clear, making it great for younger or struggling learners.

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Resource Details
Grade
4th - 7th
Subjects
Math
3 more...
Resource Types
Videos
1 more...
Instructional Strategy
Flipped Classroom
Usage Permissions
Fine Print: Educational Use