STAAR Geometry

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments. Examples include triangles, quadrilaterals, and pentagons.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What is a right angle?

Back

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

Front

What is the difference between a square and a rectangle?

Back

A square has all sides equal in length, while a rectangle has opposite sides equal in length.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

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).

Front

What is a radius?

Back

The radius is the distance from the center of a circle to any point on its circumference.

Front

What is a diameter?

Back

The diameter is a line segment that passes through the center of a circle and has its endpoints on the circle. It is twice the length of the radius.

Front

What is symmetry?

Back

Symmetry is when one shape becomes exactly like another if you flip, slide, or turn it.

Front

What is a 3D shape?

Back

A 3D shape is a solid figure that has three dimensions: length, width, and height. Examples include cubes, spheres, and cylinders.