Math Expressions Unit 8 Vocabulary

What is an acute triangle?

• A triangle with three acute angles.

• A triangle with at least two sides of the same length.

• A triangle with three sides of the same length.

• A triangle with an obtuse angle.

What is an isosceles triangle?

• A triangle with three acute angles.

• A triangle with at least two sides of the same length.

• A triangle with three sides of the same length.

• A triangle with an obtuse angle.

What is an equilateral triangle?

• A triangle with three acute angles.

• A triangle with at least two sides of the same length.

• A triangle with three sides of the same length.

• A triangle with an obtuse angle.

What is an obtuse triangle?

• A triangle with three acute angles.

• A triangle with at least two sides of the same length.

• A triangle with three sides of the same length.

• A triangle with an angle greater than 90 degrees.

What is a composite solid?

• A solid figure made by combining two or more basic solid figures.

• A polygon for which you can connect two points inside the polygon with a segment that passes outside the polygon. A concave polygon has a “dent.”

• The number of square units that cover a two-dimensional figure without gaps or overlap.

• A polygon that is not concave. All the inside angles of a convex polygon have a measure less than 180°.

What is area?

• A solid figure made by combining two or more basic solid figures.

• A polygon for which you can connect two points inside the polygon with a segment that passes outside the polygon. A concave polygon has a “dent.”

• The number of square units that cover a two-dimensional figure without gaps or overlap.

• A polygon that is not concave. All the inside angles of a convex polygon have a measure less than 180°.

What is a concave polygon?

• A solid figure made by combining two or more basic solid figures.

• A polygon for which you can connect two points inside the polygon with a segment that passes outside the polygon. A concave polygon has a “dent.”

• The number of square units that cover a two-dimensional figure without gaps or overlap.

• A polygon that is not concave. All the inside angles of a convex polygon have a measure less than 180°.

What is a convex polygon?

• A solid figure made by combining two or more basic solid figures.

• A polygon for which you can connect two points inside the polygon with a segment that passes outside the polygon. A concave polygon has a “dent.”

• The number of square units that cover a two-dimensional figure without gaps or overlap.

• A polygon that is not concave. All the inside angles of a convex polygon have a measure less than 180°.

What is a closed shape?

• A shape that starts and ends at the same point.

• A flat surface of a three-dimensional figure.

• The volume of a unit cube. A cubic unit is a unit for measuring volume.

• A table that shows how many times each outcome, item, or category occurs.

What is a face?

• A shape that starts and ends at the same point.

• A flat surface of a three-dimensional figure.

• The volume of a unit cube. A cubic unit is a unit for measuring volume.

• A table that shows how many times each outcome, item, or category occurs.