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Pythagorean Theorem: Triangles and Their Sides
Young scholars investigate triangles and their relationship to each other. In this geometry lesson, students solve right triangles using the properties of the Pythagorean Theorem. They differentiate between right, acute, straight and...
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Scalene Triangles
In this scalene triangles learning exercise, students look over and analyze 11 triangles and determine which ones are scalene triangles.
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Constructing Midsegments of Triangles
Learners construct midsegments. In this geometry lesson plan, students make conjectures and apply properties of triangles to solve problems. They complete an activity on the computer.
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Triangle Inequalities
In this geometry instructional activity, students use the inequality theorem to figure out if three segments will make a triangle. They are given the measures of two segments and must figure out the third segment on their own. There are...
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Isosceles Triangle Investigation
Learners solve problems with isosceles triangles. In this geometry lesson, students identify and use the properties of triangles to solve their problems. They find the median, altitude, and angles to the triangles.
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Solving Right Triangles
Students investigate the basic trigonometric functions. In this geometry/trigonometry lesson, students explore strategies to solve right triangles using basic trigonometric functions. The lesson includes an application problem in which...
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All Around Triangles and Quadrilaterals
In this triangle/quadrilateral worksheet, students use a centimeter ruler to draw triangles and quadrilaterals with given perimeters. Answers are included on page 2.
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The Triangle Shirtwaist Fire: 100 Years Later
Eleventh graders examine the impact of the Triangle Shirtwaist Fire. In this American History lesson, 11th graders analyze various sources. Students create a cartoon representing the impact of this fire on the United States today.
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Eighteen SSS or SAS Triangle Congruence Problems
In this triangle congruence activity, students state if triangles are congruent and if the congruence is based on side, side, side or the side, angle, side theorems in eighteen problems. The solutions are found on the last two pages.
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Economy vs. Humanity Exploring the Triangle Trade and The Middle Passage
Students examine the economic factors of the Triangle Trade as they related to slavery in the US. They use primary sources to study the experience of Africans as they traveled through the Middle Passage.
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Exploring Congruent Triangles
For this congruent triangles worksheet, 10th graders solve 10 different problems related to exploring various types of congruent triangles. First, they label the corresponding parts and use the figures to complete each statement. Then,...
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Exploring the Triangle Trade and The Middle Passage
Young scholars explore the economic factors surrounding slavery in the United States, such as the Triangle Trade. In this American History lesson, students analyze primary sources such as narrative accounts and pictures, to gather...
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Tricky Twenty Triangle
In this triangle number puzzle worksheet, students place the digits 1 - 9 in each box so that every side of a triangle add up to 20. They place number at each vertex with two digits between them.
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Make triangles
In this triangles worksheet, students make triangles using a pinboard and elastic bands and then drawing their triangles on the sheet. Students draw 6 triangles.
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A Trying Triangle Problem
In this geometry worksheet, students calculate the length of the sides of a given triangle. They also find the perimeter and area of the triangles given its side values. There is an answer key with this problem.
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Pascal's Triangle
For this algebra worksheet, 11th graders solve binomials and trinomials using Pascal's Triangle theorem. They are able to factor out any amount of higher power without having to factor all the way. There are 3 problems.
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Pedal Triangles
Students identify the properties and theorems of triangles. In this geometry lesson, students construct angle bisectors using a compass and straight edge. They identify triangular similarity and congruency.
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Triangle Fundamentals Homework
In this geometry activity, students identify the missing angles of non right triangles using the angle sum theorem. They solve for the unknown using algebra. There are 21 questions.
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Congruent Triangles Homework
In this geometry worksheet, students use proofs to solve properties of triangles. They differentiate between congruent and similar triangles. There are 15 questions.
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The Minimal Distance Point from the Vertices of a Triangle
Young scholars calculate the distance from the vertex of a triangle to the center. In this geometry lesson, students find the shortest distance between a point and the vertex of a triangle. They relate this concept of distance to the...
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Area and Perimeter of Triangles
In this area/perimeter worksheet, students find perimeter and area of 6 given triangles. An answer key is included on page 2.
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Measuring Heights With Triangles
Pupils identify the different properties of triangles. In this geometry lesson, students differentiate between congruent and similar triangles. They use mathematical reasoning to solve word problems.
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Pascal's Triangle
In this math worksheet, students read the discussion about the importance of games. They create a game as directed. They also read the rules for the Pascal Triangle.
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Similar Triangles
In this similar triangles worksheet, 10th graders solve and complete 10 different problems related to determining the sides of similar triangles. First, they write three equal ratios to show the corresponding sides that are proportional....
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