Klein ISD
Grade 8 TAKS Short Course
Objective 3
8.6(A) The student is expected to generate similar figures using dilations including enlargements and reductions;
1.Quadrilateral PQRS was dilated to form
quadrilateral WXYZ.
Which number best represents the scale factor used to change quadrilateral PQRS into quadrilateral WXYZ?
AB
C2D 4
2.Regular pentagon MNPQR is similar to pentagon TUVWX.
What scale factor was used to dilate regular pentagon MNPQR to pentagon TUVWX?
A 0.4B 1.8
C2.5D 4.2
3.Mrs. Micelli placed a picture of an equilateral triangle on an overhead projector in her math class. The overhead projector dilated the triangle’s image on the screen by a scale factor of 3.5. If the length of each side of the actual triangle is 5 centimeters, what is the length of each side of the dilated triangle on the screen?
A175 cmB17.5 cm
C8.5 cmD3 cm
8.6(B) The student is expected to graph dilations, reflections, and translations on a coordinate plane.
4.Polygon PQRSTU is shown on the coordinate grid below.
5.Which coordinate grid shows the reflection of polygon PQRSTU across the x-axis?
6.A circle with a radius of 3 units has its center at (−4, −2) on a coordinate grid.
If the circle is translated 6 units to the right and 3 units up, what will be the coordinates of the new center?
7.If ∆XYZ is translated 8 units to the left and 3 units down, what are the coordinates of point Y′?
8.PRY is reflected across the y-axis. Which of the following shows this transformation?
8.7(A) The student is expected to draw three-dimensional figures from different perspectives;
9.The drawings show the top view and the front view of a solid figure built with cubes.
Which drawing shows a 3-dimensional view of the solid figure represented above?
10.The picture below shows a toolbox with a black handle.
Which drawing best represents a top view of the toolbox?
11.Melody made a solid figure by stacking cubes. The solid figure is shown below.
Which drawing best represents a front view of this solid figure?
A
B
C
D
8.7(B) The student is expected to use geometric concepts and properties to solve problems in fields such as art and architecture;
12A bicycle wheel travels about 82 inches in
1full rotation. What is the diameter of the
wheel, to the nearest inch?
13.An architect designed a rectangular room with an area of 925 square feet.
What is the width of the room if the length is 37 feet?
14.A toy truck wheel is shown below.
Which is closest to the distance traveled during 2 full rotations of the toy truck wheel?
A50.2 cmB100.5 cm
C200.9 cmD401.9 c
15.Mr. Jones wants to install new countertops on his 2 kitchen counters. The drawing below shows the dimensions of the counters.
What is the least amount of material needed to cover the tops of both kitchen counters?
A54 ft 2B45 ft 2
C39 ft 2D6 ft 2
Klein ISD Department of Curriculum and InstructionFebruary 2007
Page 1 of 5
Klein ISD
Grade 8 TAKS Short Course
Objective 3
16.Ivan’s car uses gasoline at an average rate of 20 miles per gallon. He must drive from City 1 to City 2. Use the ruler on the Mathematics Chart to measure the distance from City 1 to City 2 on the map below in inches.
How many gallons of gasoline will Ivan’s car use at this rate when he drives from City 1 to City 2?
Klein ISD Department of Curriculum and InstructionFebruary 2007
Page 1 of 5
Klein ISD
Grade 8 TAKS Short Course
Objective 3
8.7(C) The student is expected to use pictures or models to demonstrate the Pythagorean Theorem;
17.Which figure best represents a triangle with sides a, b, and c in which the relationship
a 2 + b 2 = c 2 is always true?
18.Line segment d is a diagonal in each polygon shown below. Which drawing shows enough information to find the length of line segment d?
8.7(D) The student is expected to locate and name points on a coordinate plane using ordered pairs of rational numbers.
19.Which ordered pair is located in Quadrant IV?
A (−2.5, 4.5)B (0, −2 )
C (−1.65, −1.55)D (2 , −11)
20.Which graph shows a right triangle with one vertex at coordinates (−2, −4) and another vertex in the first quadrant?
21.A circle with a radius of 6 units is shown
below.
What are the coordinates of the center of the circle?
22.Mrs. Weathersbee drew a line and shaded part of the coordinate plane.
Which list is made up of coordinate pairs
representing points in the shaded part of the
coordinate plane?
A (3, −4), (−2, 5), and (6, −3)
B (−3, 4), (3, 8), and (−9, −2)
C (−6, 3), (1, 6), and (−2, 1)
D (−3, 5), (3, 1), and (−9, 2)
Klein ISD Department of Curriculum and InstructionFebruary 2007
Page 1 of 5