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The area of the square in the figure below is 324 square centimeters, and the two small isosceles right triangles are congruent. What is the combined area, in square centimeters, of the 2 small triangles?

(F) 108

(G) 162

(H) 216

(J) 324

(K) 648

The Correct Answer

The length of arc XY of a circle is equal to of the circumference of the circle. The length of the arc is 7π inches. What is the radius, in inches, of the circle?

(A)42 (B) 21 (C) 14 (D) 7 (E) 3

Correct Answer: B

The figure below shows a ramp for skateboarders. The base of the ramp is 25 feet long, and it rises at a 10° angle.

Given the trigonometric calculations in the table below, how high off the ground will a skateboarder be at the top of the ramp, rounded to the nearest 0.1 foot?

(F) 2.3 (G) 2.5 (H) 4.3 (J) 4.4 (K) 24.6

Correct Answer: J

If y = 0.25(100 - y), then what is the value of y?

(F) 200 (G) 75 (H) 25 (J) 20 (K) 18

Correct Answer: J

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