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Eighth Grade (Grade 8) Geometry and Measurement Questions

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Grade 8 Volume CCSS: 8.G.C.9
What is the formula for the volume of a sphere?
  1. V=l×w×h
  2. V=13πr2h
  3. V=πr2h
  4. V=43πr3
Grade 8 Symmetry and Transformations CCSS: 8.G.A.3
Graph the rectangle with the vertices listed on the grid.

A (-3, 3)
B (-1, 3)
C (-1, -5)
D (-3, -5)

Graph Numbered through 10

Graph the image of rectangle ABCD reflected across the y-axis. Label its new vertices as:

A→A′ B→B′ C→C′ D→D′

What are the coordinates of the vertices of the reflected image?
  1. A' (-3, -3), B' (-1, -3), C' (-1, 5), D' (-3, 5)
  2. A' (-1, -3), B' (-3, -3), C' (-3, 5), D' (-1, 5)
  3. A' (1, 3), B' (3, 3), C' (3, -5), D' (1, -5)
  4. A' (3, 3), B' (1, 3), C' (1, -5), D' (3, -5)
Grade 8 Pythagorean Theorem and Applications CCSS: 8.G.B.7
This is a right triangle:

side a = 8 cm
side b = 6 cm
side c = 9 cm
  1. True
  2. False
Grade 8 Metric System and SI
A cubic centimeter is a unit for measuring
  1. length.
  2. volume.
  3. mass.
  4. density.
Grade 8 Symmetry and Transformations CCSS: 8.G.A.3
The second image was created from the first using which transformation(s)?
T Q3 Vertical
1x3 Q3 Vertical
  1. Rotation
  2. Translation and Dilation
  3. Reflection and Translation
  4. No possible transformations
Grade 8 Symmetry and Transformations CCSS: 8.G.A.1
Which image shows the direction the arrow would point after rotating 90° counterclockwise?

↑
  1. ↑
  2. ↓
  3. →
  4. ←
Grade 8 Angles
Find the measure of one angle of a regular 20-gon.
  1. 3240°
  2. 3600°
  3. 1800°
  4. 162°
Grade 8 Symmetry and Transformations CCSS: 8.G.A.1
Which one of these images has reflection, rotation AND point symmetry?

Pretzel Pear Soccer Ball
  1. Soccer ball
  2. Pear
  3. Pretzel
Grade 8 Points, Lines, and Planes CCSS: 8.G.A.5
If ∠2 is a right angle and line m is parallel to line k, then which statement is correct?
Parallel Lines - Perpendicular Transversal
  1. ∠6 must equal 90°
  2. ∠6 may equal 90°
  3. ∠6 cannot equal 90°
  4. Not enough information to determine
Grade 8 Similar and Congruent Figures CCSS: 8.G.A.2
Which relationship is true for the images?

Equilateral Triangle ABC v1Equilateral Triangle ABC v2
  1. They are congruent.
  2. They are similar, but not congruent.
  3. They are neither similar nor congruent.
Grade 8 Metric System and SI
Which is the metric unit of mass?
  1. pound
  2. liter
  3. gram
  4. meter
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