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Eighth Grade (Grade 8) Geometry and Measurement Questions

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Grade 8 Triangles
What is the longest side of a right triangle?
  1. leg a
  2. leg b
  3. hypotenuse
  4. right angle
Grade 8 Volume CCSS: 8.G.C.9
Pi (π) is used when calculating which of the following?
  1. area of a circle
  2. volume of a sphere
  3. volume of a cylinder
  4. volume of a cone
  5. all of the above
Grade 8 Angles CCSS: 8.G.A.5
In the figure, if angle 1 is 100°, what is the measure of angle 5?
Parallel Lines - Skew Transversal
  1. 80°
  2. 100°
  3. 110°
  4. 140°
Grade 8 Coordinate Geometry
Find the slope of the line that passes through (5, -5) and (9, -5).
  1. 1/4
  2. undefined
  3. 0
  4. -1/4
Grade 8 Volume CCSS: 8.G.C.9
What is the approximate volume of a cylinder with a radius of 5 in and a height of 4 in?
Cylinder
  1. 63 inches cubed
  2. 105 inches cubed
  3. 251 inches cubed
  4. 314 inches cubed
Grade 8 Pythagorean Theorem and Applications CCSS: 8.G.B.7
Which of the following is not a Pythagorean triple?
  1. (5, 12, 13)
  2. (6, 14, 15)
  3. (25, 60, 65)
  4. (50, 120, 130)
Grade 8 Metric System and SI
A cubic centimeter is a unit for measuring
  1. length.
  2. volume.
  3. mass.
  4. density.
Grade 8 Volume CCSS: 8.G.C.9
What is the volume of a cylinder with a radius of 6 cm and a height of 10 cm? Use pi = 3.14.
  1. 1130.4 cm3
  2. 1130 cm3
  3. 360.8 cm3
  4. 600 cm3
Grade 8 Circles
Line AB is what part of a circle?
Circle with Diameter AB
  1. circumference
  2. radius
  3. diameter
  4. area
Grade 8 Points, Lines, and Planes CCSS: 8.G.A.5
Which set of angles is an example of corresponding angles?
Parallel Lines - Skew Transversal
  1. ∠1and∠2
  2. ∠4and∠5
  3. ∠6and∠8
  4. ∠3and∠7
Grade 8 Volume CCSS: 8.G.C.9
What is the approximate volume of a cone with a radius of 4 cm and a height of 7 cm?
Cone
  1. 29 cm cubed
  2. 117 cm cubed
  3. 268 cm cubed
  4. 352 cm cubed
Grade 8 Symmetry and Transformations
The point (8, 1) is reflected across the y-axis. What is its image?
  1. (1, 8)
  2. (8, -1)
  3. (-8, 1)
  4. (-8, -1)
Grade 8 Symmetry and Transformations
A figure is moved 4 units to the right and down 3 units. What type of transformation is this?
  1. Reflection
  2. Translation
  3. Dilation
  4. Rotation
Grade 8 Triangles
How many degrees are there in a triangle?
  1. 90
  2. 360
  3. 45
  4. 180
Grade 8 Points, Lines, and Planes CCSS: 8.G.A.5
Which of the following correctly classifies the relationship between ∠4 and ∠5?
Parallel Lines - Perpendicular Transversal
  1. alternate interior angles
  2. same-side interior angles
  3. corresponding angles
  4. vertical angles
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