Scale Drawings, Similar Figures, Right Triangle Trigonometry

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SCALE DRAWINGS, SIMILAR FIGURES, RIGHT TRIANGLE TRIGONOMETRY

In this unit, you will review ratio and proportion and solve problems related to scale drawings and similar figures. You will then investigate right triangle trigonometry. You will examine how trigonometry is derived from the angles and sides of right triangles and then apply “trig” functions to solve problems.

Ratios and Proportions

Similar Figures: Scaled Down (05:53)

Estimating and Proportions: Counting Sheep (04:39)

Maps and Drawing Scales (07:40)

Understanding Similar Polygons

Solving Triangles Using the Pythagorean Theorem and the Six Trig Functions (07:01)

Map of Ohio (PDF)

Review Worksheets
The review worksheets are provided to give extra practice in skill areas presented in the unit. The worksheets are optional unless otherwise specified by the instructor. The worksheets are Adobe Acrobat files. Click on the pencil icon to open the document. Save the document to a folder on the computer, and then enter answers for the problems in the textboxes. Once the document is completed, make sure to save it again, and then send the document to the instructor via email. The answer key provided is for the instructors only and is password protected.

	Practice Worksheet: Proportions
	Answer Key (Password Protected)
	Practice Worksheet: Word Problems About Proportions
	Answer Key (Password Protected)
	Practice Worksheet: Similar Figures
	Answer Key (Password Protected)
	Practice Worksheet: Finding Values Using Trigonometry
	Answer Key (Password Protected)
	Practice Worksheet: Finding Angles Using Trigonometry
	Answer Key (Password Protected)
	Practice Worksheet: Using Trigonometry
	Answer Key (Password Protected)