If 
, then 
(F) 
(G) 
(H) 
(J) 
(K) 
In the following figure, sin θ=
(A) 
(B) 
(C) 
(D) 
(E) 
Correct Answer: E
In the figure below, ABCD is a square. Points are connected on each pair of adjacent sides of ABCD
to form 4 congruent right triangles, as shown below. Each of these
triangles has one leg that is twice as long as the other leg. If the
area of the shaded region is 25 square feet, what is the area of square ABCD in square feet?
（A）225 （B） 112.5 （C） 56.25 （D） 45 （E） 27
Correct Answer: D
The measure of the sum of the interior angles of a regular n-sided polygon is (n - 2)180°. A regular octagon is shown below. What is the measure of the designated angle?
(A) 135° (B) 144° (C) 200° (D) 225° (E) 315°
Correct Answer: D
More ACT Math Exam Questions
- 1Given that i2= –1, what is the value of (4 + 2i)(4 – 2i)?
- 2
The perimeter of a square is 36 inches. What is the area of the square, in square inches?
- 3At the end of each month, a credit card company uses the formula D = B (1 + r) + 10m2 to calculate debt owed, where D is the cardholder's total debt; B is the amount charged to the card; r is the rate of interest; and m is the number of payments the cardholder has previously missed. If Daniel has charged $2,155 to his credit card with a 13% interest rate and has missed 2 payments, which value is closest to Daniel's total credit card debt?
- 4
Line segments
, 
, and 
are parallel and intersect line segments 
and as shown in the figure below. The ratio of the perimeter of ΔFJK to the perimeter of ΔFLM is 3:5, and the ratio of 
to is 1:5. What is the ratio of 
to 
?
- 5
The solution set of 5x + 9 ≥ 2(3x + 4) + 7 is shown by which of the following number line graphs?