# unit 5 quiz review

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Unit 5 Quiz Review. Dilations And Similar Figures. 1 – Dilate the figure by a scale factor of 200%. Original Points A (0,4) B (-6,5) C (-8,5) D (-12, 4). New Points A’ ( ) B’ ( ) C’ ( ) D’ ( ). - PowerPoint PPT Presentation

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• Unit 5 Quiz ReviewDilations And Similar Figures

• 1 Dilate the figure by a scale factor of 200%Original Points A (0,4)B (-6,5)C (-8,5)D (-12, 4)

New Points A ( )B ( )C ( )D ( )

• 2- What is the scale factor of the reduction of from

XYZSRQ4 in3 in1.5 in2 in

• 3- If I dilate a figure by 175% the new figure will be _______ than the original figure. This is called a(n) _______________.

• 4- If I dilate a figure by 75% the new figure will be _________ than the original figure. This is called a(n) _______________.

• 5- Dilate the point (3,7) by a scale factor of .

Write the scale factor as a decimal and a percent.

Write if the dilated figure will be bigger or smaller (in proper mathematical terms)

• 6. In the diagram below, what is the ratio of the area of Triangle PQR to the area of Triangle LMN? 5 m.

• 7. If the sides of two similar rectangles have a ratio of , what is the ratio of their areas?

• 8. If the ratio of two areas of two similar triangles is 1:16, what is the ratio of the sides of the similar triangles?

• 9- Given the figures are similar, if the area of pentagon A is 12 square inches, what is the area of pentagon B?

2244

• 10- What is the scale factor of the enlargement?201024153630

• 11-What is the length of the missing side if the ratio of the areas is 9/16?6 inx in

• 12- What is the height of the tree? Trees shadow: 50 ft. Boys shadow: 10 ft.X ft.4 ft.

• 13- What relationship do you see between the ratio of sides of two similar rectangles and the ratio of the areas of two similar rectangles?