Curated OER
Squares and Rhombi
In this squares and rhombi activity, 10th graders solve 8 different problems with quadrilaterals, especially the square and rhombus. First, they use the given rhombus and the given information to find the value for each statement. Then,...
Curated OER
Angle Measurements
In this angle measurements learning exercise, 10th graders solve 12 problems that refer to the illustrations on the sheet and find the measures of various types of angles. First, they refer to the first figure to respond to 6 questions...
Curated OER
Midpoints and Segment Congruence
For this midpoints and segment congruence worksheet, 10th graders solve 16 various types of problems related to determining the midpoint and segment congruence in various situations. First, they use the given figure to determine whether...
Curated OER
Angle Relationships
For this angle relationships worksheet, 10th graders solve 10 different problems that include determining the value of various angle relationships. First, they name a pair of vertical angles and determine which angle is supplementary to...
Curated OER
Parts of Similar Triangles
In this parts of similar triangles worksheet, 10th graders solve 6 different problems related to determining the value of various parts of similar triangles. First, they find the value of x in the 2 figures shown. Then, students find the...
Curated OER
Pre-Proof Warm-Ups
In this pre-proofs learning exercise, 10th graders solve and complete 10 different problems that include various proofs and their definitions. They use the diagram shown and the given information to write the direct conclusion for each...
Math Worksheets Center
Congruent Triangle Proofs Quiz
A congruent triangles quiz challenges teenage mathematicians to complete a pair of geometric proofs. Each problem includes a picture of the triangles in question, a given set of information, and the five steps needed to finish the proof....
Curated OER
Quadrilaterals
In this quadrilaterals worksheet, 10th graders solve and complete 10 different problems that include various types of proofs and quadrilaterals. First, they read the given information for each quadrilateral illustrated. Then, students...
Curated OER
Reasoning with Rules
For this reasoning with rules worksheet, students solve and complete 12 different problems that include applying various rules to solve the equations given. First, they assume all segments are straight and state the rule used to solve...
Curated OER
Congruent Triangles
In this congruent triangles worksheet, 10th graders solve and complete 13 different problems. First, they use the illustrated congruent triangles to show other congruency in each problem. Then, students determine and prove the angle...
Curated OER
Geometric Proofs
In this geometric proofs worksheet, students prove supplementary, complimentary, and congruent angles from given models and information. This four-page worksheet contains six multi-step problems.
Curated OER
Special Segments is a Triangle
In this geometry learning exercise, 10th graders examine the special segments that occur in a triangle. The three page learning exercise contains twenty-five problems. Answers are not included.
Curated OER
Polygons
In this polygons learning exercise, 10th graders identify and name 16 different figures that are related to various types of polygons. First, they label each of the figures shown with polygon or not a polygon. Then, students write the...
Virginia Department of Education
High School Mathematics Geometry Vocabulary Word Wall Cards
Having a good working knowledge of math vocabulary is especially important for geometry learners. Here are 119 pages worth of wonderfully constructed definitions, constructions, formulas, properties, theorems, and postulates. This is a...
EngageNY
Congruence, Proof, and Constructions
This amazingly extensive unit covers a wealth of geometric ground, ranging from constructions to angle properties, triangle theorems, rigid transformations, and fundamentals of formal proofs. Each of the almost-forty lessons is broken...
Lockport City School District
Reasons for Geometric Statement/Reason Proofs
Stuck trying to remember the formal language of a geometric proof? Never fear, this handout has them all ready to go. The reasons are sectioned by topic so this handy guide is ready when you are to tackle those two column proofs.
Curated OER
Congruent Segments
The task, should your class decide to take it, is to list a series of reflections that transfer a line segment from one position to another.
Mathematics Vision Project
Circles: A Geometric Perspective
Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...
EngageNY
Circles, Chords, Diameters, and Their Relationships
A diameter is the longest chord possible, but that's not the only relationship between chords and diameters! Young geometry pupils construct perpendicular bisectors of chords to develop a conjecture about the relationships between chords...
Curated OER
Circumcenter of a Triangle
Your geometry learners will discover and show the construction of the circumcenter of a triangle. Guided by the steps in the activity, they construct perpendicular bisectors of each side that have a point of concurrency called the...
Curated OER
Geometry/Math A Regents Questions: Angle Bisectors
In this angle bisector worksheet, young scholars solve five short answer and multiple choice problems. Students construct angle bisectors using a compass.
Curated OER
Reflected Triangles
Your learners find and construct the line of reflection between a triangle's pre-image and its reflection image in this short activity.
Curated OER
Circles and Cylinders
In this geometry lesson, 10th graders break down a circle and identify the different parts. They discuss chords, diameter, radius, circumference, major and minor segment. There are 42 problems broken down into 5 different sections.
Curated OER
Why Does SAS Work?
Your geometry learners are guided by questions that help them use the language of reflections to explain the Side-Angle-Side congruence between two triangles in this collaborative task. Given a sample solution, declaring the triangles...
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