Home->ACT Math

What is the perimeter of quadrilateral STUR if it has vertices with (x,y) coordinates S(0,0), T(2,-4), U(6,-6), R(4,-2) ?

(F) 2

(G) 2 + 2

(H) 8

(J) 80

(K) 400

The perimeter of an elliptical billiard table is to be covered with red velvet. The perimeter of an ellipse is given by the formula , where l is the length and w is the width, as shown in the diagram below. If the length is 4 feet and the width is 3 feet, what is the outside perimeter of the ellipse in feet?

（A）π （B） (4 + 3) （C） π （D） (4π + 3) （E） 5π

Correct Answer: A

Mike sold 3 pounds of beef at his deli on Wednesday and 2 pounds of beef on Saturday. Which of the following ranges includes the total amount of beef, in pounds, Mike sold during these two days?

（A）At least 5 and less than 5 （B） At least 5 and less than 5 （C） At least 5 and less than 6 （D） At least 6 and less than 6 （E） At least 6 and less than 6

Correct Answer: B

A right triangle has sides measuring 12 inches, 35 inches, and 37 inches. What is the cosine of the angle that lies opposite the 35-inch side?

(F) (G) (H) (J) (K)

Correct Answer: J