Math Similar Figures.

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Presentation transcript:

Math Similar Figures

The symbol ~ means is similar to. Vocabulary Similar Figures—Figures that have the same shape, but not the same size. The symbol ~ means is similar to.

Similar Figures have two properties. The corresponding angles have equal measure. The lengths of corresponding sides are in proportion.

A method of determining length or distance without measuring directly. Vocabulary Indirect Measurement A method of determining length or distance without measuring directly.

Find the length of the side marked with the variable x.

Find the length of the side marked with the variable x.

Find the length of the side marked with the variable x and y.

Find the length of the side marked with the variable x and y.

Find the length of the side marked with the variable x.

Find the length of the side marked with the variable x.

Jen-Min wants to enlarge a 4-in. by 6-in Jen-Min wants to enlarge a 4-in. by 6-in. photo so that the longer side will be 14 in. How long will the shorter side be?

A tree casts a shadow 30 ft. long. If a man 6 ft A tree casts a shadow 30 ft. long. If a man 6 ft. tall casts a shadow 5 ft. long at the same time of day, how tall is the tree?

Solve each problem. A tree casts a shadow 10 ft. long. A 5-ft woman casts a shadow 4ft long. How tall is the tree? A building 70 ft high casts a 150-ft shadow. A nearby flagpole casts a 60-ft shadow. What is the height of the flagpole? A tree casts a shadow 8 ft long. A 6-ft man casts a shadow 4 ft long. How tall is the tree?

Assignment Homework E-12