By CK-12 Foundation

CK-12’s Geometry - moment version is a transparent presentation of the necessities of geometry for the highschool scholar. subject matters contain: Proofs, Triangles, Quadrilaterals, Similarity, Perimeter & sector, quantity, and changes. quantity 2 comprises the final 6 chapters: Similarity, correct Triangle Trigonometry, Circles, Perimeter and sector, floor sector and quantity, and inflexible adjustments.

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**Extra resources for CK-12 Geometry - Second Edition, Volume 2 of 2**

**Sample text**

Use shadows or a mirror to measure the height of an object in your yard or on the school grounds. Draw a picture to illustrate your method. Use the diagram below to answer questions 27-31. Draw the three separate triangles in the diagram. Explain why . Complete the following proportionality statements. Review Queue Answers Answers will vary. One possibility: Similarity by SSS and SAS Learning Objectives Use SSS and SAS to determine whether triangles are similar. Apply SSS and SAS to solve problems about similar triangles.

What are the lengths of the sides? The length and width of a rectangle are in a 3:5 ratio. The perimeter of the rectangle is 64. What are the length and width? The length and width of a rectangle are in a 4:7 ratio. The perimeter of the rectangle is 352. What are the length and width? The ratio of the short side to the long side in a parallelogram is 5:9. The perimeter of the parallelogram is 112. What are the lengths of the sides? The length and width of a rectangle are in a 3:11 ratio. The area of the rectangle is 528.

Similarity Transformations Learning Objectives Draw a dilation of a given figure. Plot an image when given the center of dilation and scale factor. Determine if one figure is the dilation of another. Review Queue Are the two quadrilaterals similar? How do you know? What is the scale factor from to ? Leave as a fraction. Quadrilateral has vertices and . Quadrilateral has vertices and . Determine if the two quadrilaterals are similar. Explain your reasoning. Know What? One practical application of dilations is perspective drawings.