Which of the following is the sine of angle A in the right triangle below?
(A)
(B)
(C)
(D)
(E)
For the circle whose standard equation is (x - 1)2 + (y + 2)2 = 8, the center and radius are:
（A）center = (-1, 2); radius = 2
.
（B） center = (-1, 2); radius = 4.
（C） center = (0, 0); radius = 4.
（D） center = (1, -2); radius = 2.
（E） center = (1, -2); radius = 4.
Correct Answer: D
In the figure below, 
and 
bisect each other at e. The measure of 
CAE is 80° and the measure of BDE is 60°. What is the measure of CEA?
（A）10° （B） 30° （C） 40° （D） 60° （E） Cannot be determined
Correct Answer: C
Lines 
and 
intersect at point V on line 
, as shown in the figure below. The measures of 2 angles are given in terms of a, in degrees. What is the measure of 
XVZ in degrees?
（A）30 （B） 90 （C） 120 （D） 150 （E） 180
Correct Answer: C
More ACT Math Exam Questions
- 1In the standard (x,y) coordinate system, circle O has its center at (4,-3) and a radius of 12 units. Which of the following is an equation of the circle?
- 2
A right triangle, shown below, has a longer leg measuring 16
centimeters. How long is the hypotenuse of the triangle, in centimeters?
- 3
Which trigonometric function (where defined) is equivalent to
? - 4
The expression
equals: - 5
The following graph shows the percentage of shares controlled by five owners of a startup software company. Zach intends to sell his shares equally among the other four owners. After this sale is final, what percentage of the company will Bell own?
