Instructional Video9:37
Brian McLogan

Find the area of an obtuse right triangle

12th - Higher Ed
👉 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....
Instructional Video7:40
Zach Star

What are the odds that 3 'random' points on a sphere will form an acute triangle?

12th - Higher Ed
What are the odds that 3 'random' points on a sphere will form an acute triangle?
Instructional Video3:48
Brian McLogan

How to determine when you have two solutions for an oblique triangle

12th - Higher Ed
👉 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...
Instructional Video3:09
Brian McLogan

Determine the measure of each side of a isosceles triangle

12th - Higher Ed
👉 Learn how to find the missing side of a triangle. A triangle is a polygon with three sides. Triangles are classified on the basis of the angles or on the basis of the sides. The classification of a triangle on the basis of the sides...
Instructional Video11:21
Brian McLogan

How to find all of the missing parts of a triangle by first using the law of cosines

12th - Higher Ed
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...
Instructional Video
Art of Problem Solving

Art of Problem Solving: Area of an Obtuse Triangle

9th - 10th Standards
Video tutorial uses examples to reinforce understanding of how to find the area of an obtuse triangle. [6:44]