Curated OER
Equilateral Triangles
In this equilateral triangles worksheet, students study the various triangles to identify equilateral triangles. Students may count the triangles.
Alabama Learning Exchange
Is It a Triangle?
Students explore the concept of triangle inequalities. In this triangle inequality lesson plan, students cut spaghetti noodles into given lengths. Students use the noodles to complete a worksheet about triangle inequalities. Students...
Curated OER
Recognizing Triangles
In this triangle worksheet, students circle all of the triangles in a shape of patterns. Worksheet gives a reference web site for additional activities.
Curated OER
Circus of Shapes
In this geometric shapes worksheet, students analyze a picture of a skyscraper tower with many shapes. Students color all the triangles.
Noetic Learning
Kinds of Triangles (Online Interactive)
For this triangles learning exercise, learners analyze pictures of four triangles. For each triangle, students mark if it is acute, obtuse, or right.
Curated OER
Circles and Triangles: Sun
In this coloring shape worksheet, learners trace the circles and color them yellow. Students trace the triangles and color them orange. Learners then trace the circle and triangle at the bottom of the page.
Curated OER
Shapes and Color: Rectangles and Triangles
For this shape and color worksheet, students trace rectangles, coloring them pink, then trace circles, coloring them purple. Students then trace and color a set of 6 circles.
Curated OER
Shapes and Colors: Triangles and Ovals
In this shape and color worksheet, students trace triangles coloring them brown, then trace ovals and color them pink. Students also trace and pictures of a ice cream cones made of triangles and ovals.
Curated OER
Angles
In these angles worksheets, students complete several activities for angles. Students complete 34 problems about angle measurement.
Curated OER
Geometry: Quadrilateral, Triangle, Parallelogram
In this geometry worksheet, students decide which characteristic, quadrilateral, triangle, or parallelogram make sets of shapes fall under that same category.
Curated OER
Special Right Triangles
In this right triangles worksheet, 10th graders solve and complete 16 various types of problems. First, they find the missing side lengths in each illustration shown. Then, students place the letter of each problem on the lines at the...
Curated OER
Triangle Practice
In this triangle worksheet, students trace and color various triangles. Other shapes are included; students must also determine which shapes are triangles.
Curated OER
Tracy Triangle
In this triangle instructional activity, 1st graders study the picture of the triangle and then memorize the triangle song. Students practice drawing triangles in the provided space.
Curated OER
Perimeter and Area of Triangles 2
In this measurement worksheet, 5th graders study the different triangles and then use the given measurements to find the perimeter and area for each.
Curated OER
Calculating the Perimeter of a Triangle
In this geometry learning exercise, 5th graders read how to find the perimeter of a triangle. They use the P= S1+S2+S3 formula to find the perimeter of three triangles.
Curated OER
Shapes Matching Worksheet
Using this worksheet, students practice identifying basic shapes, such as an oval, rectangle, triangle, and hexagon. This worksheet would be ideal for preschool or kindergarten students.
Curated OER
Shape, Color, and Number Match
For this shapes and colors worksheet, students solve and complete 8 different problems that include matching numbers, shapes, and colors. First, they use the guide at the top of the sheet to match the number to the correct color. Then,...
Curated OER
Sine
In this sine worksheet, 10th graders solve 10 different problems by determining the sine in each right triangle shown. They determine the sine of one point by applying the other points given in the problem.
Curated OER
Geometry Puzzle
In this geometry puzzle worksheet, learners identify and complete a puzzle that includes 7 different geometrical shapes. They identify and name each shape listed at the bottom. Then, students label every shape in the puzzle with the...
Curated OER
Triangle Challenge
In this triangles worksheet, students identify and name 3 different types of triangles. First, they determine the number of right triangles in the figure shown on the sheet. Then, students determine the number of equilateral triangles...
Curated OER
Three-dimensional Shapes
In this three-dimensional shapes worksheet, 6th graders identify and complete 4 different questions that include various types of three-dimensional shapes. First, they identify the shape illustrated as it relates to a cube. Then,...
Curated OER
Cosine
In this cosine worksheet, 10th graders solve 10 different problems that include various triangles. They determine the cosine of one point in each triangle illustrated. Then, they apply the line segments given to each and solve for the...
Curated OER
Triangle Angle Sort
In this triangle and angle instructional activity, 10th graders identify 36 different angles and triangles illustrated on the sheet. First, they define the vocabulary to include equilateral, scalene, right, and isosceles triangle. In...
Curated OER
Circle Proofs
In this circle proofs worksheet, 10th graders complete 4 different problems that include circle proofs. They respond to each of the questions that deal with circle proofs. Then, students read the given information and use the circle...