Academic Vocabulary Mathematics 9-12 #8

What are perpendicular lines?

• Lines that form a 45° angle where they cross

• Lines that intersect to form four equal squares

• Lines that form a 90° angle where they cross

• Lines that run parallel to each other and never intersect

Answer explanation

Perpendicular lines are lines that form a 90° angle where they cross, making them intersect at right angles.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What is the definition of a point of intersection?

• The point where a line meets the edge of a shape

• The point at which two lines are tangent to each other

• The point at which two lines intersect, or cross

• The center point of a circle

Answer explanation

The definition of a point of intersection is the point at which two lines intersect, or cross.

Tags

CCSS.HSG.CO.A.1

What is point symmetry?

• Point symmetry is when a figure changes shape when rotated.

• Point symmetry is when a figure can be rotated by less than 360 degrees and still look the same.

• Point symmetry is when a figure can be reflected across a line and still look the same.

• Point symmetry is when a figure can be rotated by more than 360 degrees and still look the same.

Answer explanation

Point symmetry is when a figure can be rotated by less than 360 degrees and still look the same.

Tags

CCSS.HSG.CO.A.4

What is a polygon?

• A polygon is a closed shape with straight sides.

• A polygon is a shape with curved sides.

• A polygon is a shape with only one side.

• A polygon is always a regular shape.

Answer explanation

A polygon is a closed shape with straight sides, making the correct answer choice A.

Tags

CCSS.2.G.A.1

What is a polynomial?

• A type of computation

• A programming language

• A geometric shape

• An expression consisting of variables, coefficients, and exponents that can be combined using arithmetic operations.

Answer explanation

A polynomial is an expression consisting of variables, coefficients, and exponents that can be combined using arithmetic operations.

What is a prime factor?

• A prime factor is a factor that is a composite number.

• A prime factor is a factor that is divisible by only 1 and itself.

• A prime factor is a factor that is a rational number.

• A prime factor is a factor that is a prime number.

Answer explanation

A prime factor is a factor that is a prime number.

Tags

CCSS.4.OA.B.4

What is a prism?

• A polyhedron that is made up of parallelograms.

• A prism is a type of musical instrument.

• A prism is always made of glass.

• A prism is a solid geometric figure with two parallel and congruent faces called bases, and all other faces are parallelograms.

Answer explanation

A prism is a solid geometric figure with two parallel and congruent faces called bases, and all other faces are parallelograms.

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

What is the definition of probability in mathematics?

• The result of dividing one number by another.

• How likely it is for an event to happen.

• A formula for the roots of a quadratic equation.

• The distance from the center of a circle or a sphere to any point on the circle or a sphere.

Answer explanation

Probability in mathematics refers to how likely it is for an event to happen, making it the correct definition.

Tags

CCSS.7.SP.C.5

What does the Pythagorean theorem state?

• A formula for the roots of a quadratic equation.

• The result of multiplying numbers together.

• In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

• A polygon with four sides and four angles.

Answer explanation

The Pythagorean theorem states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Tags

CCSS.8.G.B.8

What is a radian?

• A unit for measuring angles. 180° = π radians, and 360° = 2π radians.

• The symbol √, which is used to represent the square root or nᵗʰ root of a number.

• The result of dividing one number by another.

• A sample in which every individual or element in the population has an equal chance of being selected.

Answer explanation

A radian is a unit for measuring angles where 180° is equal to π radians and 360° is equal to 2π radians.

Tags

CCSS.HSF.TF.A.1