Jeffrey J Steckroth-GMAT Math Prep[精华].ppt

GMAT Math Prep;GMAT Prep Day 3;Review QUIZ; 1. Rectangular floors X and Y have equal area. If floor X is 12 feet by 18 feet and floor Y is 9 feet wide, what is the length of floor Y, in feet? 13 ? 18 18 ? 21 24; 2. In the figure above, all angles shown are right angles. What is the perimeter of the figure? 400 m b) 200 m c) 800 m d) 40000 m e) 100 m ; 3. In the diagram above, the point on segment PQ that is twice as far from P as from Q is: (3,1) (2,1) (2,-1) (1.5,0.5) (1,0); 4. If k is an integer and 2 k 7, for how many different values of k is there a triangle with sides 2, 7, and k? One Two Three Four Five; 5. In the rectangular coordinate system above, the area of triangle PQR is: 12.5 14 16 25;6. The perimeter of an isosceles right triangle is . What is the length of the hypotenuse? ; 7. A right circular cone is inscribed in a hemisphere so that the base of the cone coincides with the base of the hemisphere. What is the ratio of the height of the cone to the radius of the hemisphere? ;END of QUIZ; 1. Rectangular floors X and Y have equal area. If floor X is 12 feet by 18 feet and floor Y is 9 feet wide, what is the length of floor Y, in feet? 13 ? 18 18 ? 21 24; 2. In the figure above, all angles shown are right angles. What is the perimeter of the figure? 400 m b) 200 m c) 800 m d) 40000 m e) 100 m ; 3. In the diagram above, the point on segment PQ that is twice as far from P as from Q is: (3,1) (2,1) (2,-1) (1.5,0.5) (1,0); 4. If k is an integer and 2 k 7, for how many different values of k is there a triangle with sides 2, 7, and k? One Two Three Four Five; 5. In the rectangular coordinate system above, the area of triangle PQR is: 12.5 14 16 25;6. The perimeter of an isosceles right triangle is . What is the length of the hypotenuse? ; 7. A right circular cone is inscribed in a hemisphere so that the base of the cone coincides with the base of the hemisphere. What is the rat