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Geometry Spiral Review 15 Name ________________________ Teacher ______________________ 1) Due Date __4-25-14________ AC : AB is 8:5, Find the value for X to the nearest tenth. 3x+2 B A 24 C 2) Polygon ABCD is similar to Polygon FREH . A) Find the scale factor for Polygon FREH to Polygon ABCD A B) Find the length of RE to the nearest tenth. C) If the perimeter of Polygon ABCD is 69, what is the perimeter of Polygon FREH rounded to the nearest tenth? (Figures are not drawn to scale) 15 B 25 18 E D C H R 6 F 3) Proof Write a two-column or paragraph proof. GIVEN: CAB is a right angle. AD is an altitude. PROVE: ABC~ DAC STATEMENT REASON 1 2 3 4 4) 1 ADB and ADC are right angles C is congruent to C ABC~ DAC Given Given 2 3 4 Sketch the triangles using the given description. Explain whether the triangles can be similar. In ABC, mB = 46°, AB = 6, and BC = 12. In XYZ, mY = 46°, XY = 2, and YZ = 3. ________________________________________________________________ ________________________________________________________________ 5) Draw the dilation of the polygon with the given vertices using the given scale factor k. State the new coordinates. A(2, 0), B(4, 4), C(2, 6), D(0, 4); k = 3 2