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33 resources with the keyterm area of a triangle

Videos (Over 2 Million Educational Videos Available)
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Phonics Song 2 (new version)
Prepositional Phrases for Kids | English Grammar Video Video
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Prepositional Phrases for Kids | English...
Algebra 50 - Three Variable Systems in the Real World - Problem 2 Video
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Algebra 50 - Three Variable Systems in the...
Other Resource Types ( 33 )
12:08
Lesson Planet

Part 2 of the Proof of Heron's Formula

For Students 9th - 12th
Picking up where the prior installment in the series on HeronÕs formula ended, Sal provides a deeper, more detailed explanation of this topic.
11:00
Lesson Planet

Part 1 of Proof of Heron's Formula

For Students 9th - 12th
Providing the first installment in a series devoted to the exploration of Heron's Formula, this video is a high-level experience that delves into a proof using algebra. It demonstrates a step-by-step process for finding the area of a...
4:43
Lesson Planet

Heron's Formula

For Students 9th - 10th
Introducing Heronês formula is the main objective of this lecture. Essentially, it describes how to solve a problem. Heron's formula is given, and then a problem is solved. Since the actual explanation of the formula will be given during...
4:36
Lesson Planet

Area of Diagonal Generated Triangles of Rectangle are Equal

For Students 9th - 10th
Finding the area of each of the triangles that are created by drawing two diagonal lines through a rectangle is explored in this lecture. It provides a detailed explanation of how to use a formula to solve the given problem. Tip: Use...
4:36
Lesson Planet

Area of Diagonal Generated Triangles of Rectangle are Equal

For Students 9th - 10th
Finding the area of each of the triangles that are created by drawing two diagonal lines through a rectangle is explored in this lecture. It provides a detailed explanation of how to use a formula to solve the given problem. Tip: Use...
Lesson Planet

Triangle Series

For Teachers 9th - 12th Standards
Your algebra learners emphasize the"geometric" in geometric series as they use a common ratio between algebraic terms and find that it corresponds to a repeated similarity transformation. 
Lesson Planet

Triangle Area

For Teachers 6th - 9th Standards
While the instructional activity focuses on right triangles, this activity offers a great way to practice the area of all triangles through an interactive webpage. The activity begins with the class taking a square paper and cutting in...
3:25
Lesson Planet

Area of a Triangle Using Trigonometry

For Teachers 9th - 12th
Step-by-step, viewers are taught how to use one angle to find the area of a triangle. This video is useful for your trigonometry learners, especially if you employ a flipped classroom model. Mathematicians can view this at home and them...
4:53
Lesson Planet

Find Perimeter and Area by Finding the Length of Sides by Comparing Coordinates

For Students 5th - 7th Standards
Using coordinates to draw a rectangle, help learners understand the relationship between the given order pairs used as the vertices and the length of its joining sides. This is the second video in a series of four using geometry to solve...
Lesson Planet

Slope/Triangle Area Exploration

For Teachers 8th - 11th
Using CAS TI-Nspire, explore how the area of a triangle formed by the x- and y-axes and a line through a point is related to the slope of a line. Additionally, the lesson serves as an introduction to rational functions and the concept of...
Lesson Planet

Who Wants to Be a Champion: Perimeter, Area, Symmetry

For Teachers 3rd - 5th
Have your learners practice finding the perimeter and area of geometric shapes using this resource. While just a simple review, this could be a wonderful way to solidify the concepts in their minds.
3:54
Lesson Planet

How do You Find the Area of a Triangle?

For Teachers 6th - 8th
Help your class visualize how to find the area of a triangle. In a step-by-step process, the instructor shows how to calculate the area of a triangle. Great for instruction and/or review.
Lesson Planet

Algebra: Area of a Triangle - Reteach 16.4

For Students 5th - 6th
For this triangle worksheet, students read about the formula for finding the area of a triangle, then find areas for 9 triangles. Houghton Mifflin text is referenced.
Lesson Planet

Triangles

For Teachers 3rd - 5th
This unit enables scholars to apply the rule for area of a triangle (area equals half base times height). They practice multiplication and division strategies as they calculate areas.
Lesson Planet

Triangle Problems-Base, Height, and Area

For Students 10th
In this geometry learning exercise, 10th graders find the base, height, or area of a triangle. The one page interactive learning exercise contains ten questions. Answers and hints are included. 
Lesson Planet

Easy Worksheet: Area of Triangles

For Students 9th - 12th
In this area of a triangle worksheet, high schoolers solve 6 graphing problems. Students find the area of a triangle given the three coordinates of the vertices.
Lesson Planet

Surround and Be Found! Triangular Areas, That Is!

For Teachers 10th
Tenth graders investigate area of a triangle. For this geometry lesson, 10th graders explore the technique of finding the area of a triangle by surrounding them with rectangles and subtracting right-triangle areas. The lesson uses a...
Lesson Planet

Area of a Triangle Between Parallel Lines

For Teachers 9th - 12th
Students investigate the area of a triangle.  In this geometry lesson, students use technology (TI-nspire) to explore what happens to the area of a triangle as one vertex moves along a line parallel to the side opposite the vertex.
Lesson Planet

Exploring Area

For Teachers 6th - 8th
Determine the area of a piece of land using this real-life activity. Learners will determine the cost of a piece of land given cost per acre and the land dimensions. They also use their Ti-73 to find the area of a triangle.
Lesson Planet

Area of Parallelogram and Triangle

For Students 10th
In this geometry worksheet, 10th graders determine the area of triangles and parallelograms. The one page interactive worksheet contains ten questions. Answers and hints are included. 
Lesson Planet

Six Find the Area of Triangles Given the Vertices Problems

For Students 8th - 11th
In this area of a triangle worksheet, students calculate the area of six triangles given the coordinate of the vertices. Grids are provided.
Lesson Planet

Area of a Triangle

For Teachers 4th - 5th
Students find the area of a triangle. For this area lesson, students see how to find the area of a triangle. They try a couple problems on their own. 
Lesson Planet

Area of a Triangle

For Teachers 9th - 11th
In this geometry worksheet, students solve problems by finding the area of a triangle. They are given the sides and asked to solve using the Pythagorean Theorem. There are 72 problems.
Lesson Planet

Finding the Area of a Triangle

For Teachers 5th
Fifth graders investigate the area of a triangle. In this geometry lesson, 5th graders practice finding the area of a triangle using the correct formula: 1/2bh.