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Math III Unit 1 – Geometry Name: _________________________________ G.CO.11 Practice 1) Find the measure of the numbered angle in each parallelogram. a) b) c) 2) For what values of x and y must each figure be a parallelogram? a) b) c) 3) Determine whether the parallelogram is a rhombus, a rectangle, or a square. a) b) c) 4) Find the measures of the numbered angles in each rhombus. a) b) c) 5) HIJK is a rectangle. Find the value of x and the length of each diagonal. a) HJ = x and IK = 2x – 7 b) HJ = 19 + 2x and IK = 3x + 22 #’s 6 – 9: For what value of x is the figure the given parallelogram? 6) Rhombus 7) Rectangle 8) Rhombus 9) Rectangle 10) The diagonals of a rhombus have lengths of 12 centimeters and 16 centimeters. What is the length of one side of the rhombus? 11) The area of a parallelogram is 24 in2 and the height is 6 in. Find the length of the corresponding base. 12) The area of a rhombus is 120 cm2. The length of one diagonal is 20 cm. What is the length of the other diagonal?