Angle worksheets cover almost all aspects of angle topics in geometry. It contains identifying vertex and sides, exterior and interior angles, Identifying and naming the types, measuring angle with protractor, complementary and supplementary angles, angles formed between intersecting lines, simple algebra problems based on angles, angles formed by parallel and transversal lines and more.
Basic Angle Worksheets
Identify the Vertex and Sides
When two rays have a common end point, an angle is formed. The end point is called the vertex and the rays that form an angle are called sides. Use these free printable worksheets to identify the vertex and the sides of the angles.
Interior, Exterior or On the Angle
A point is plotted for each angle formed by two rays. Loot at the position of a point and tell whether it is interior, exterior or on the angle.
Name the Angles
Name the angle in all possible ways. Different methods are: vertex alone; vertex and sides; angle alone.
Place the center position and straight edge of a protractor over a vertex and the base in each figure and measure the angle.
Angles with the vertex and sides not mentioned.
Angles with the vertex and sides mentioned.
Identifying Types of Angles
Use the angle measure to identify whether the angles are acute, obtuse, right, reflex, zero or complete rotation.
Complementary and Supplementary Angles
Two angles are said to be complement, if their sum equals 90 degree. Use the definition of complementary angle to solve the worksheets that follow.
Simple worksheet with list of angles. Calculate complement for each angle provided.
Right angle is divided into two with the measure of one angle. Identify the measure of missing angle.
Map the angles that are complement to each other.
If the sum of two angles equal 180 degree, they are called supplementary angles.
Simple problems in finding supplement of each angle.
Straight angle is divided into two with the measure of one angle. Find the measure of missing angle.
Map the supplementary angles in correct order.
Mixed review includes both complementary and supplementary angles
Angles Formed by Intersecting Lines
When a ray stands on a straight line, it forms a linear pair. Linear pair is supplement to each other.
If any two lines intersect, at a point of intersection, it forms four angles. The angles that are vertically opposite usually called as vertical angles and they are congruent.
Linear Pair and Vertical Angles- Combo
Each figure includes only one angle. Find the rest of 3 angles include both linear pair and vertical angles.
Angles in a Straight Line
An angle in a straight line is 180o. If one or more ray stands on a line, it forms many angles at the meeting point whose sum measures 180o.
Angles Around a Point
Sum of the angles around a point is 360o. Find the missing angles around a point in each figure that follows in a worksheet.
Angles in Algebra
Linear Pair Equation
Set up the sum of linear pair equal to 180o and solve for the variable.
Equation in Vertical Angle
Because the vertical angles have same degree measure, they are congruent. Set up the algebraic expression equal to the angle and solve for x.
Algebraic Equation in a Straight Line
Set up the sum of the angles equal to 180 degree and find the value of the variable.
Parallel lines and Transversal Worksheets
When a transversal intersects two parallel lines, it forms corresponding angles, linear pair, alternate angles, vertical angles and consecutive angles. The next coming angle worksheets help you practice in identifying different type of angles formed by parallel lines and its transversal.
Look at the corresponding position of angles formed by a transversal and find the missing angle.
The angles that are formed on opposite sides of the transversal called as alternate angles. Based on position, it is further classified as alternate interior and alternate exterior.
Consecutive Interior Angles
Consecutive interior angles are on the same side of the transversal but between the parallel lines. They are supplement to each other.
Consecutive Exterior Angles
Same as consecutive interior but lies outside two lines.
Identify all possible angles formed by parallel lines and its transversal.