# How to find the height of a triangle How to find height and understand the formula for area of an oblique triangle - Duration: 7:38. Brian McLogan 216,559 views How to Find the Height of a Triangle. To calculate the area of a triangle you need to know its height. To find the height follow these instructions. You must at least have a base to find the height. Recall the formula for the area of a. How to find the height of a triangle in which all angles are sharp, graphically. If all the angles at the triangle are sharp (each angle in the triangle is less than 90 degrees), then to find the height you need to do the following. Given the given parameters, we construct a triangle. We introduce the notation. HOW TO FIND THE HEIGHT OF A TRIANGLE WHEN GIVEN THE AREA - MATHS WITH MR.SA - Duration: 3:00. Teacher Satya 1,845 views. 3:00. Find the Missing Length of a Right Triangle - Duration: 2:09. How to find the height of a triangle - formulas. There are many ways to find the height of the triangle. The most popular one is the one using triangle area, but many other formulas exist: Given triangle area; Well-known equation for area of a triangle may be transformed into formula for altitude of a right triangle: How to Find the Height of a Triangle. Every triangle has three heights, or altitudes, because every triangle has three sides. A triangle's height is the length of a perpendicular line segment originating on a side and intersecting the opposite angle. In an equilateral triangle, like S U N below, each height is the line segment that splits a side in half and is also an angle bisector of the. Please help me, I am completely baffled. I need the formula to find the altitude/height of a triangle (in order to calculate the area, b*h/2) based on the lengths of the three sides. Please, someone help me. I really need it. I searched google and couldn't find anything. Dimensions and traits vary from one triangle to the next, making a straightforward, go-to calculation of the shape’s height difficult. Students should determine the best way to find the height based on what they know about a triangle. For example, when you know the angles of a triangle, trigonometry can help; when you. Lyle’s little brother is playing with a plastic container at the beach. The container is a right rectangular prism with a length of 14 inches, a width of 6 inches, and a height of 4 inches. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.