= ______ = ______ z = ______ = ______ = ______ z = ______ = ______ = ______ z = ______ x y x y x y 64. Determine whether is a parallelogram. Justify your answer. ABCD 65. The length of the median of trapezoid is 13 feet. If the bases have lengths 2x + 4 and 10x 50, find EFGH x. – is a kite, If = 10, and = 48, find 66. ABCD RC BD CD. 67. Of the 300 television sets sold at an electronics store last month, 90 were flat-screen TVs. What is the ratio of TVs to other TVs sold last month? 68. Determine whether Justify your answer. △ABC ∼ △DEF. When a 5-foot vertical pole casts a 3-foot 4-inch shadow, an oak tree casts a 20-foot shadow. Find the height of the 69. tree.
x = ______ y = ______ z = ______ x = ______ y = ______ z = ______ x = ______ y = ______ z = ______ 64. Determine whether ABCD is a parallelogram. Justify your answer. 65. The length of the median of trapezoid EFGH is 13 feet. If the bases have lengths 2x + 4 and 10x – 50, find x. 66. ABCD is a kite, If RC = 10, and BD = 48, find CD. 67. Of the 300 television sets sold at an electronics store last month, 90 were flat-screen TVs. What is the ratio of TVs to other TVs sold last month? 68. Determine whether △ABC ∼ △DEF. Justify your answer. 69. When a 5-foot vertical pole casts a 3-foot 4-inch shadow, an oak tree casts a 20-foot shadow. Find the height of the tree.