Triangles
A triangle is one of the basic shapes of geometry: a polygon with three corners or vertices and three sides or edges which are line segments.
In Euclidean geometry any three noncollinear points determine a unique triangle and a unique plane.
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triangles videos replace textbased tutorials and give you better stepbystep explanations of triangles. Watch each video repeatedly until you understand how to approach triangles problems and how to solve them.
 Hundreds of video tutorials on triangles make it easy for you to better understand the concept.
 Hundreds of word problems on triangles give you all the practice you need.
 Hundreds of printable worksheets on triangles let you practice what you have learned by watching the video tutorials.
How to do better on triangles: TuLyn makes triangles easy.
Top Triangles Worksheets
curves, plane figures, polygons, right triangles, shapes, triangles, pythagorean theorem, .
Area And Perimeter Of a Right Triangle Video Clip
Area And Perimeter Of a Right Triangle
Video Clip Length: 4 minutes 45 seconds
Video Clip Views: 33511
This tutorial will show you how to find the perimeter and area of triangle.
area, area of triangles, curves, plane figures, polygons, right triangles, shapes, triangles
Area Of A Triangle Video Clip
Area Of A Triangle
Video Clip Length: 3 minutes 12 seconds
Video Clip Views: 29936
This tutorial will show you how to find the area of a triangle when given the base and height. You will be able to determine which is the base, which is the height and what dimensions you will need to find the area. In addtiion, you will learn how to figure how to find the product using multiplication of a fraction by two other numbers.
area, area of triangles, curves, plane figures, polygons, shapes, triangles
Perimeter Of A Scalene Triangle Video Clip
Perimeter Of A Scalene Triangle
Video Clip Length: 1 minute 15 seconds
Video Clip Views: 23496
This tutorial will show you how to find the perimeter of the triangle. You will notice that all we do is add up all the sides to get our perimeter.
curves, perimeter, plane figures, polygons, scalene triangles, shapes, triangles
Area Of A Triangle 2 Video Clip
Area Of A Triangle 2
Video Clip Length: 2 minutes 60 seconds
Video Clip Views: 20854
This tutorial will be able to show you how to figure out the base and height of a given triangle. You will also learn how to multiply a fraction by two other numbers. In addition, you learn how to substitute values and evaluate the formula in finding the area of a triangle.
area, area of triangles, curves, plane figures, polygons, shapes, triangles
Right Triangles Video Clip
Right Triangles
Video Clip Length: 4 minutes 4 seconds
Video Clip Views: 18658
curves, plane figures, polygons, right triangles, shapes, triangles
Perimeter Of An Equilateral Triangle Video Clip
Perimeter Of An Equilateral Triangle
Video Clip Length: 1 minute 26 seconds
Video Clip Views: 17577
This tutorial will help you find the perimeter of an equilateral triangle. Knowing that this is an equilateral triangle, you will know that all the sides will be equal, so finding the perimeter will be simply multiplying one side by three or adding the same quantity three times.
curves, equilateral triangles, perimeter, plane figures, polygons, shapes, triangles
Finding The Area Of Triangle Video Clip
Finding The Area Of Triangle
Video Clip Length: 1 minute 23 seconds
Video Clip Views: 16940
area, curves, plane figures, polygons, shapes, triangles
Identifying Types Of Triangles By Given Marking And Angles Video Clip
Finding The Area Of Triangle 2 Video Clip
Finding The Area Of Triangle 2
Video Clip Length: 2 minutes 2 seconds
Video Clip Views: 15661
area, curves, plane figures, polygons, shapes, triangles
Top Triangles Word Problems

A 10 meter ladder is leaning (#759)
A 10 meter ladder is leaning aganist a b... ...the ladder? Round to the nearest tenth.
curves, geometric proofs, plane figures, polygons, pythagorean theorem, right triangles, shapes, triangles

A man on a 135ft vertical cliff looks down (#2873)
A man on a 135ft vertical cliff looks d... ...s the friend from the base of the cliff?
curves, functions, identities, plane figures, polygons, pythagorean theorem, right triangles, shapes, sohcahtoa, triangles, trigonometric functions, trigonometric identities

A ladder 39 feet long leans against a building (#1419)
A ladder 39 feet long leans against a bu... ...gh is the window ledge about the ground?
cosine, curves, functions, plane figures, polygons, pythagorean theorem, right triangles, shapes, triangles, trigonometric functions

A 32 foot ramp connects a platform with a sidewalk (#2504)
A 32 foot ramp connects a platform with... ...he base of the platform to the sidewalk?
curves, number sense, numbers, plane figures, polygons, pythagorean theorem, radicals, right triangles, shapes, triangles

If a ladder is leaning against a building (#2714)
If a ladder is leaning against a buildin... ...ft. less than the length of the ladder?
algebraic equations, curves, equations, plane figures, polygons, pythagorean theorem, right triangles, shapes, solving algebraic equations, solving equations, triangles
See All Triangles Word Problems
Homework Help Questions
 What is an isosceles triangle that also an obtuse triangle?
 ΔWXY is isosceles. WY is 10 centimeters long. Find the length of XZ.
 Find the perimeter of an equilateral triangle whose height is 18.
 Why is it called similar triangle?
 xyz is congruent to pqr. If y=30 and z=100, what is p?
 The legs of a right triangle are 3 and 8 centimeters long, respectively. What is the length of the hypotenuse?
 a=8
c=17
 A boat has a right triangular sail with two sides that are 18 feet and 15 feet. How long must the third side of the sail be?
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Taking g.e.d and having trouble doing math word problems relating to triangles and when teachers show me i seem to forget and get very frustrated past all test but haven`t taken math test yet but soon want this bad so i can graduate with class please help me to understand how to do this kinds of word problems when i read them they don`t make sense.
Right Triangles.
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Hundreds of video clips, worksheets, and word problems on congruent triangles.
Hundreds of video clips, worksheets, and word problems on similar triangles.
Hundreds of video clips, worksheets, and word problems on scalene triangles.
Hundreds of video clips, worksheets, and word problems on equilateral triangles.
Hundreds of video clips, worksheets, and word problems on right triangles.
Hundreds of video clips, worksheets, and word problems on transversal triangles.
Hundreds of video clips, worksheets, and word problems on proportional triangles.
Hundreds of video clips, worksheets, and word problems on area of triangles.
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