Similar Figures Dilations

Two objects that are the same shape but NOT the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary

Which proportion could be used to find side 'x'?

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Which proportion must be true?

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Which proportion can we use to find 'x'?

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Which proportion is true?

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Which proportion can be used to find side 'x'?

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Which proportion can be used to find 'x'?

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Which proportion can be used to find 'x'?

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Which of the following algebraic expression would create an enlargement?

• (x,y) -----> (x+3,y+3)

• (x,y) -----> (-2x,-2y)

• (x,y) -----> (0.75x,0.75y)

• (x,y) -----> (2.3x,2.3y)

AB is dilated to form A'B'. If AB = 7, and A'B' = 21, what is the scale factor?

• 3

• 1/3

• -3

• 14