Geometry Review: Lines, Angles, Shapes, and Symmetry Task Cards

Front

What is a line in geometry?

Back

A straight path that extends infinitely in both directions with no endpoints.

Front

What is an angle?

Back

The figure formed by two rays (sides of the angle) that share a common endpoint (the vertex).

Front

What are the types of angles?

Back

Acute (less than 90°), Right (exactly 90°), Obtuse (greater than 90° but less than 180°), and Straight (exactly 180°).

Front

What is a triangle?

Back

A polygon with three edges and three vertices.

Front

What are the different types of triangles based on sides?

Back

Equilateral (all sides equal), Isosceles (two sides equal), and Scalene (no sides equal).

Front

What is a quadrilateral?

Back

A polygon with four edges (sides) and four vertices (corners).

Front

What are the types of quadrilaterals?

Back

Square, Rectangle, Rhombus, Trapezoid, and Parallelogram.

Front

What is symmetry?

Back

A property where one half of an object is a mirror image of the other half.

Front

What is a line of symmetry?

Back

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

Front

What is a circle?

Back

A round shape where all points are equidistant from the center.