We can find the area of any triangle with Heron's formula when we know the sides of the triangle. Here we will see how to prove the heron's formula, which is a classic trigonometric result. And because you like Hero's formula, you probably will also like the proof of the following...

Law of sine and cosine:    • Classic math proofs of the law of sin...  
Pythagorean Theorem    • Pythagorean Theorem & Its Inverse (my...  
Pythagorean triple generator    • finding ALL pythagorean triples (solu...  

Shop my math tshirt & hoodies: https://amzn.to/3qBeuw6