4th Grade Geometry Review

Front

What is a line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical parts that are mirror images of each other.

Tags

CCSS.4.G.A.3

Front

How many lines of symmetry does a circle have?

Back

A circle has an infinite number of lines of symmetry.

Tags

CCSS.4.G.A.3

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Tags

CCSS.4.G.A.1

Front

How do you find the measure of a missing angle in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees. Subtract the sum of the known angles from 180 to find the missing angle.

Tags

CCSS.8.G.A.5

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width (Area = length × width).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated by adding together the lengths of all four sides (Perimeter = 2 × (length + width)).

Tags

CCSS.3.MD.D.8

Front

What is a polygon?

Back

A polygon is a closed figure with three or more straight sides.

Tags

CCSS.2.G.A.1

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides.

Tags

CCSS.2.G.A.1