Similar Figures Dilations

Eric is building a scale model of a helicopter at 1/72. If the height of the model is 2 (2/3), what is the actual height of the helicopter?

• 16 feet

• 27 feet

• 48 feet

• 192 feet

Tags

CCSS.7.G.A.1

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

Tags

CCSS.HSG.SRT.A.2

Triangle ABC is dilated to produce triangle A'B'C' with scale factor 3/4 . Which describes the relationship between the two triangles?

• Triangle A'B'C' is an enlargement of triangle ABC

• Triangle A'B'C' is a reduction of triangle ABC

• Triangle A'B'C' is a mirror image of triangle ABC

Tags

CCSS.8.G.A.3

Which must be true of a scale factor of a dilation if the image is smaller that the pre-image?

• The scale factor is positive

• The scale factor is greater than 1

• The scale factor is between 0 and 1

• The scale factor is negative

Tags

CCSS.8.G.A.3

Find missing side

• 5

• 7

• 9

• 11

Tags

CCSS.HSG.SRT.A.2

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.

Tags

CCSS.7.G.A.1

What scale factor was used to produce the image?

• 2

• -2

• ¹/₂

• 1

Tags

CCSS.8.G.A.3

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

• x = 20

• x = 12

• x = 5

• x = 4

Tags

CCSS.HSG.SRT.A.2

All angles in similar figures are congruent.  

• True

• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Are the following similar? Why or why not?

• Yes

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

Tags

CCSS.HSG.SRT.A.2