Similar and Congruent

Which proportion can be used to find 'x'?

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• (x,y) -----> (0.4x,0.4y)

• (x,y) -----> (x+3,y+1.5)

• (x,y) -----> (2.5x,2.5y)

• (x,y) -----> (x-1.5,y-3)

• (x,y) ----> (2x,2y)

• (x,y) ----> (½x,½y)

• (x,y) ----> (x+2,y+2)

• (x,y) ----> (x+½,y+½)

• A reflection across the x-axis

• A 180 degree rotation

• A dilation by a scale factor of 4

• A translation of 3 units to the right and 4 units down

Find y.

• 144

• 18

• 72

• 12

Which side length corresponds with EF?

• ML

• LM

• OL

• EH

Determine the correct algebraic representation of the similar figures

• (x, y) -> (.5x, .5y)

• (x, y) -> (2x, 2y)

• (x, y) -> (x + 2, y + 2)

• (x, y) -> (x - .5, y - .5)

Triangle PQR is similar to triangle DEF shown. Which describes the relationship between the corresponding sides of the two triangles?

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Suppose that triangle JKL is similar to triangle PQR. Which angle correspond with angle L?

• angle J

• angle K

• angle P

• angle Q

• angle R

Determine the correct algebraic representation of the similar figures shown.

• (x, y) -> (2x, 2y)

• (x, y) -> (.5x, .5y)

• (x, y) -> (x, 2y)

• (x, y) -> (.5x, y)