Elementary Algebra Review Part 25
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Lesson Summary:
In this lesson, students learn how to write and solve an equation from geometry length and area word problems through two examples. The first example involves finding the length of the shortest side of an isosceles triangle, while the second example deals with finding the length of a rectangular parking lot. Students learn to define variables, write equations from word problems, and solve the equations to find the solution.
Lesson Description:
Writing and solving an equation from geometry length and area word problems.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- If n - 4 + n + n = 38, what is n?
- How do you write and solve an equation from geometry length and area word problems?
- If an isosceles triangle has two equal sides, the shortest side is 4 feet shorter than one of the equal sides, and the perimeter is 38 feet, what is the length of the shortest side of the triangle?
- If the length of a rectangular parking lot is 10 meters less than twice its width, and the perimeter is 400 meters, what is the length of the lot?
- How can you draw a picture to help you solve a geometry word problem?
- How do you solve for w if w + 2w - 10 + w + 2w - 10 = 400?
- What is the shortcut to solving a perimeter word problem?
- How do you check your solution to a word problem?
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Staff Review
This lesson takes an often difficult concept of taking a word problem in geometry, drawing a pictures, writing an equation, solving, and checking. All parts of each problem are explained clearly.
