CCSS.Math.Content.8.G.A.4

A square has a side length of 5 1/2 inches. This square is dilated by a scale factor of 4/5 to create a new square. What is the side length of the new square?

• 4 4/5 in.
• 4 1/4 in
• 4 2/5 in
• not here

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CCSS.Math.Content.8.G.A.4

The pair of figures is similar. Find the missing side.

• x = 1
• x = 3
• x = 9
• x = 5

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CCSS.Math.Content.8.G.A.4

CCSS.Math.Content.7.G.A.1

CCSS.Math.Content.HSG.SRT.B.5

Similar figures have the same ______ but different ______. 

• measure; shapes
• sizes; shapes
• value; measures
• shape; sizes

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CCSS.Math.Content.8.G.A.4

Jose reduced the size of a photo to a height of 4 in. What is the new width if it was originally 16 in tall and 8 in wide?

• 16 in
• 3 in
• 2 in
• 4 in

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CCSS.Math.Content.8.G.A.4

A scale factor of less than one means

• that the prime image will be larger than the pre-image.
• That the prime image will be the same as the preimage.
• That you need to subtract that amount off  of each side.
• That the prime image will be a reduction of the preimage.

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CCSS.Math.Content.8.G.A.4

Are the triangles similar?

• Yes
• No

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CCSS.Math.Content.8.G.A.4

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75
• 9.75
• 10
• 12

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CCSS.Math.Content.8.G.A.4

Enlargement or reduction?  Find the scale factor!

• It's a reduction; the scale factor is 2.
• It's an enlargement; the scale factor is 2.
• It's an enlargement; the scale factor is 1/2.
• It's a reduction; the scale factor is 1/2.

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CCSS.Math.Content.8.G.A.4

CCSS.Math.Content.7.G.A.1

What is the ratio of the side lengths?

• 1.25
• 1.5
• 2
• 2.5

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CCSS.Math.Content.8.G.A.4

Scale Factor of ½ is __________________ .

• Reduction
• Enlargement

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CCSS.Math.Content.8.G.A.4

CCSS.Math.Content.7.G.A.1