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Geometry Spiral Review 16 Name _____________________ Teacher ___________________ 1) If DUE __5-2-14________ R A S ? , then T S T ? R T 1) 2) A R 3) R A 4) S A Use the given point coordinates to determine whether ΔDEF is dilation of ΔABC. If so, state the scale factor of the dilation. A(6, 8), B(12, 16), C(18, 12); D(9, 12), E(18,24), F(27, 18) 2) 1) 3) Not a dilation 2) 4) -7 3) 3 2 3) -1 4) 2 3 3x x = 3x 6 3 Solve the proportion 1) 1 2 2) 1 4) 7 The area of a rectangle is 504 square centimeters. The ratio of the length to the width is 7 : 2. Find the length and the width. 1) 5) 21, 6 2) 9, 56 3) 42, 12 4) 12, 42 4) 15 Find the geometric mean of the two numbers 9 and 25 1) 6) 17 2) BE EN = UR BU Given 3 3) 5 Find UR to the nearest tenth. B 7 N E 10 R 17 U 7) 1) 34.0 2) 34.3 3) 24.0 4) 24.3 Multiple Choice Triangles ABC and DEF are similar. Which statement is not correct? 1) B ~ E 2) A ~ E 3) AB ~ DE 4) AC ~ FD 8) In the diagram at the right, find the approximate length of BD . . 1) 9) Multiple Choice In the diagram at the right, ΔACE ~ ΔDCB. Find the length of AC. 1) 4.29 2) 28 3) 18 4) 14.29 10) Find the value of the variable. 1) 3 4 2) 7.857 2) 3) 4.5 2.857 3) 4) 15 12.857 4) 10.5