Proof of Area of Obtuse Triangle

image010.gif

Area of obtuse or acute triangle – GeoGebra

Law of Cosine (Cosine Law) - with Examples and Proof - Teachoo

Grade 10 Math - Sine Law Proof for Obtuse Triangle

Obtuse Triangle: Area, Examples, and Formulas - Lesson

exzuberant: Really, really understanding the area of a triangle (Part 2)

How To Find An Angle In An Acute Obtuse Triangle GRE Math, 58% OFF

A conjecture and the flowchart proof used to prove the conjecture are shown. Given: m∠QRS=76° Prove: △PQR

Area of a Triangle

Write the sum of the angles of an obtuse triangle.