The length of the hypotenuse of the right triangle figured below is 16, and the length of one of its legs is 12. What is the cosine of angle θ?
(A)
(B) 
(C) 
(D) 
(E) 
20% of 20 is equal to 50% of what number?
(A) 2 (B) 4 (C) 8 (D) 10 (E) 200
Correct Answer: C
Which of the following is equal to sin xsec x?
(A) tan x(B) cot x(C) cos xtan x(D) cos x csc x(E) cot xcsc x
Correct Answer: A
Points P and Q lie on circle O with radius of 9 feet. The measure of 
POQ is 120°. What is the length, in feet, of minor arc 
?
（A）3π （B） 6π （C） 9π （D） 18π （E） 27π
Correct Answer: B
More ACT Math Exam Questions
- 1
As shown in the figure below, a compass has marks for every 10° and "North" and "South" are the endpoints of a line segment. If the point of the needle of this compass travels 42 mm as it moves in a clockwise direction from "East" to "North," how long is the needle to the nearest tenth of a millimeter?
- 2If the lengths of adjacent sides of a rectangular playground have measures of 4x - 3 and 2x2 + 7 units, respectively, then which of the following expressions represents the area, in square units, of the playground?
- 3
Which of the following is equivalent to (Y3)8?
- 4
The table below gives the values of f(x) for selected values of x in the function f(x) = (x + 4)2 - 1, where x and y are both real numbers.