TED-Ed
TED-Ed: Daniel Finkel: Can you solve the unstoppable blob riddle?
A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It's also unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet...
Wonderscape
Understanding Perimeter and Area of Triangles
The area of a triangle is always calculated using the formula 1/2 × base × height, regardless of whether it is a right, scalene, isosceles, or equilateral triangle. Perimeter and area have practical applications, such as determining the...
Wonderscape
Calculating the Area of a Triangle
To determine the area of a triangle, you use the formula: Area = 1/2 × Base × Height. This formula works because a triangle is essentially half of a rectangle or square. By identifying the base (the bottom side) and the height (the...
Wonderscape
Finding the Perimeter of a Triangle: Simple Steps and Applications
To determine the perimeter of a triangle, you simply add the lengths of its three sides. Whether it’s a scalene triangle with different side lengths, an isosceles triangle with two equal sides, or an equilateral triangle where all sides...
Wonderscape
Classifying Triangles by Their Angles: Acute, Right, and Obtuse
Triangles can also be classified based on their angles. An acute triangle has all three angles less than 90 degrees, a right triangle has one angle exactly 90 degrees, and an obtuse triangle has one angle greater than 90 degrees. No...
Curated Video
Review for You: The Wonderful World of Geometry
Mr. Addit reviews geometry fundamentals including: points, lines, line segments, rays, perpendicular and parallel lines, acute, obtuse, and right angles, and isosceles, scalene, and equilateral triangles. He also reviews polygons...
Curated Video
Classifying Triangles
Classifying Triangles explores the six types of triangles by defining the triangle types and classifying triangles by side length and angle measurement.
Zach Star
What are the odds that 3 'random' points on a sphere will form an acute triangle?
What are the odds that 3 'random' points on a sphere will form an acute triangle?
Curated Video
Classifying Triangles by Examining Properties
In this video, students will learn about the concept of angles and how they determine the classification of a triangle. The video explains the different types of triangles, such as acute, obtuse, isosceles, equilateral, and scalene,...
Curated Video
Classify Triangles by Angle Type
Understand the different types of angles of triangles, such as right angles, obtuse angles, and acute angles. We then demonstrate how to identify and sort triangles into these categories.
Brian McLogan
How to classify a triangle based on the angles of the triangle ex 2
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Brian McLogan
Based on the angles of a triangle learn how to classify the triangle ex
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Brian McLogan
What is an obtuse triangle
👉 Learn the essential definitions of triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of their angles or on the basis of their side lengths. The classification of triangles on the bases of their...
Brian McLogan
How to use the law of cosines to find out no triangles exist
Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The law of cosines is used in determining the lengths of the sides or the measures of the angles of a triangle when no...
Brian McLogan
Classify a triangle based on the angles of a triangle ex 4
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Brian McLogan
Find the area of an obtuse right triangle
👉 Learn how to find the area of a triangle. The area of a triangle is the measure of the region enclosed by the triangle. There are several methods that can be used to find the area of a triangle depending on the available information....
Brian McLogan
Learn to classify a triangle based on the sides of the triangle ex 7
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Brian McLogan
Determine the missing sides and angles using the law of sines
👉 Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...
Brian McLogan
How to classify a triangle using the Pythagorean inequality Theorem ex 2
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Brian McLogan
How to determine when you have two solutions for an oblique triangle
👉 Learn how to determine if a given SSA triangle has 1, 2 or no possible triangles. Given two adjacent side lengths and an angle opposite one of them (SSA or ASS), then there are 3 possible cases: there can be 1 solution, 2 solutions and...
Brian McLogan
Given the angles of a triangle learn how to classify the triangle ex 3
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Brian McLogan
What are the Law of Sines?
What are the law of sines and how to do we use them to solve the missing measures of right triangles. In this lesson we will explore where the law of sines comes from, and how to apply it to word problems as well as regular oblique...
Brian McLogan
Learn how to classify a triangle by it's sides ex 8
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...