CCSS Math 8 Geometry Domain Sample Questions and Answers

CCSS Math 8 Geometry Domain Sample Questions and Answers 1. Triangle ABC is similar to Triangle DEF. What is the measure of angle C? A. 77 degrees B. 63 degrees C. 31 degrees D. 14 degrees 2. A line AB has coordinates A (6, 2) and B (7, 8). The line is reflected across the x-axis. What are the new coordinates of the line? A. (6, -2) and (7, -8) B. (-6, 2) and (7, -8) C. (6,2) and (-7,8) D. (6,-2) and (-7,-8) 3. A line PQ has coordinate P (-4, 6) and Q (-9, 2). The line is rotated 90 degrees clockwise. What are the new coordinates of the line? A. (6,-4) and (2, -9) B. (6, 4) and (2,9) C. (4,-6) and (9, -2) D. (-6, -4) and (-2, -9) 4. A line YZ has coordinates (-7, -8) and (-4,-1). The line is translated 4 units down and 5 units right. What are the new coordinates of the line? A. (-2, -12) and (-5, 1) B. (-12, -4) and (-9, 3) C. (-11, -3) and (-8, 4) D. (-2, -12) and (1, -5) 5. Some playing cards are passed out from a deck. Which side corresponds to side AD? A. PQ B. DC C. EH D. KL 6. Hexagon FGHIJK is reflected over line l. Which angle corresponds to angle G? A. angle Z B. angle V C. angle W D. angle U 7. Square ABCD is rotated 180 degrees about the origin. Which angle in the new square corresponds to angle B? A. angle P B. angle Q C. angle R D. angle S 8. Trapezoid posters are being used to advertise a movie. If the posters are aligned in the same direction, which side would be parallel to side AB? A. JK B. QR C. EH D. ML 9. A. 5 units B. 3 units C. 6.4 units D. 5.2 units 10. Katie drew two similar rectangles, shown below. What is the area of the larger rectangle? A. 0.91 sq cm B. 3.64 sq cm C. 1.82 sq cm D. 8 sq cm 11. Garrett concluded that the triangles below are not congruent. Which explanation would explain his reasoning? A. The sum of the interior angles equals 180 degrees. B. The measurement of the sides are in meters. C. The corresponding angles are equal. D. The corresponding sides are unequal. 12. Trapezoid ABCD is reflected over the dotted line shown (x=3). What are the new coordinates of B? A. (6, 3) B. (6, 1) C. (3, 3) D. (3, 1) 13. 14. A triangle has two interior angles that measure 75 degrees and 15 degrees. What is the measure of the third angle? A. 270 degrees B. 90 degrees C. 80 degrees D. 100 degrees 15. The measure of angle 2 is 120 degrees. What is the measure of angle 7? A. 60 degrees B. 30 degrees C. 90 degrees D. 120 degrees 16. An isosceles triangle has two base angles that each equal 18 degrees. What is the measure of the third angle? A. 36 degrees B. 162 degrees C. 144 degrees D. 154 degrees 17. A tree and its shadow are shown in the diagram. If the tree casts a shadow of 40 feet, then how tall is the tree? A. 900 feet B. 90 feet C. 30 feet D. 10 feet 18. A cylinder has the measurements shown. Which statement accurately reflects the volume of the cylinder? A. The volume is exactly 30 cubic centimeters. B. The volume is approximately 30 cubic centimeters. C. The volume is approximately 15 cubic centimeters. D. The volume is exactly 5 cubic centimeters. 19. A spherical ball is filled with air. What is the approximate volume of air in the ball if it is ½ full? A. 56.52 cubic inches B. 113.04 cubic inches C. 84.78 cubic inches D. 42.39 cubic inches 20. Two cans of corn have the same height, but the radius of the larger can has a radius twice that of the smaller can. Which statement is true about the volume of the cans? A. The smaller can one-half of the volume of the larger can. B. The larger can is 3 times larger than the smaller can. C. The larger can is 2 times larger than the smaller can. D. The smaller can is one-fourth of the volume of the larger can. Answers 1. C 2. A 3. B 4. D 5. C 6. B 7. D 8. A 9. C 10. B 11. D 12. A 13.A 14. B 15. D 16. C 17. C 18. B 19. A 20. D