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Geometry

Practice Set 4
1.    The points labeled in the above figure are the vertices of a triangle with an area of 45. What is n?

(A) 5
(B) 6
(C) 7
(D) 9
(E) 10
2.    What is the value of ?

(A) 27
(B)
(C) 90
(D) 243
(E) 729
3.    If ABCD is a rectangle, what is x + y + z?

(A) 75
(B) 160
(C) 175
(D) 180
(E) 210
4.    If ˚, then r + s =

(A) 150˚
(B) 165˚
(C) 180˚
(D) 195˚
(E) 210˚
5.    Rays and are each tangent to the circle with center O. If the radius of the circle is 1 and the measure of angle is 60˚, what is the area of quadrilateral OABC?

(A)
(B)
(C)
(D)
(E)


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