Geometry Vocabulary Quiz - Graded

A 3-sided polygon is a triangle.

An 8-sided polygon is an octagon.

A polygon with 12 sides is called a dodecagon.

A cone is the best name for this solid figure because it is a three-dimensional shape that has a circular base and tapers to a point called the apex. It closely resembles the shape of an ice cream cone or a traffic cone. The other options, cylinder, sphere, and cube, do not have the same shape characteristics as a cone.

It's cylinder. A cylinder is made of 2 circles joined together by a curved face. A cylinder is NOT a polyhedron.

Quadrilaterals are polygons with 4 sides.

Heptagons are polygons with 7 sides.

Octagons are polygons with 8 sides.

Nonagons are polygons with 9 sides.

A decagon is a 10-sided polygon.

A dodecagon is a polygon with 12 sides.

A pentagon is a polygon with 5 sides.

Vertices are "corners." This prism has 6 vertices on one side (the hexagon) and 6 on the other side for a total of 12.

A 4-sided polygon is a quadrilateral. Rhombuses (rhombii), squares, parallelograms, trapezoids, and rectangles are special types of quadrilaterals.

Protractors are used to measure angles.

Object G doesn't have congruent sides. It's an irregular polygon.

Hexagons are polygons with 6 sides.

The answer is 8. 2 hexagons, and the 6 rectangles connecting them.

The answer is 18. The hexagons have 6 each, plus the 6 connecting them.

A 9-sided polygon is a pentagon.

A polygon with 10 sides is called a decagon.

In geometry, corners are called vertices. A corner is a vertex.

A 6-sided polygon is a hexagon.

A 7-sided polygon is a hexagon.

A cube is made out of 6 squares. Each square is a face. Cubes have 6 faces.

The original and triangle D are the same size and shape. They are congruent.

This statement is true. Pyramids are "built" out of triangles. All of these solids are built out of triangles. (except for the base).

It's a 5-sided polygon. That's a pentagon.

It's a prism because it's made up of rectangles. It's a hexagonal prism because the two bases are hexagons.

A 5-sided polygon is a pentagon.

This 2D object is a net, which means it can be folded into a 3D polyhedron. When folded, this particular net will form a polyhedron with 7 faces.

Vertices are "corners." A rectangular prism has 8 corners, 4 on top and 4 on bottom.

The given net consists of a hexagonal base and triangular faces that converge to a single point at the top. When folded, this net will form a 3D polyhedron known as a hexagonal pyramid. The base of the pyramid is a hexagon, and the sides are triangular, hence the name hexagonal pyramid.

The best name for object B is a hexagonal pyramid because it has a base with six sides, which makes it a hexagon, and it has triangular faces that meet at a single point, forming a pyramid shape.

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Object F is NOT the same size and shape as the 4 squares. It's NOT congruent to the original square.

A pyramid has a base and triangular faces that meet at a common vertex. The number of faces on a pyramid is always greater than the number of edges because each triangular face has three edges. Therefore, the statement that the number of faces on a pyramid is always the same as the number of edges is false.

These triangles ARE the exact same size and shape. They ARE congruent.

6 faces: the pentagon base is one face plus the five triangles = 6.

Rectangular prisms are "made" out of 6 rectangles. They have 6 faces.

Protractors are used to measure angles.
Rulers measure distance.
Thermometers measure temperature.
Balance scales measure mass.

Congruent figures are the same size AND shape. These squares are the same shape, but NOT the same size. They are NOT congruent.

The yellow object has 7 faces.

The answer is 6. 5 for the pentagon itself plus the apex on top.

Squares have 4 right angles so they must be rectangles.
Squares have 4 congruent sides so they must be rhombii.
Squares have 2 pair of parallel sides so they must be parallelograms.

Figure 3 is a 3D "net" that will form a rectangular prism when folded because it consists of six rectangles that can be folded and connected to form a solid rectangular shape.

This triangle has 3 equal length sides and the largest angle is an acute angle. It's an equilateral acute triangle.

Polyhedrons are 3D solids that are "made" out of polygons. The faces of a polyhedron are all polygons.

A cube has 8 vertices. A vertex is a point where three or more edges meet. In a cube, each corner is a vertex, and there are 8 corners in total. Therefore, the correct answer is 8.

A rectangular prism is a three-dimensional shape that has six faces, and each face is a rectangle. The number of vertices of a rectangular prism can be determined by counting the number of corners or points where the edges of the faces meet. Since each face of a rectangular prism has four corners, and there are two congruent faces for each corner, the total number of vertices is 4 multiplied by 2, which equals 8. Therefore, the correct answer is 8.