# HSG-SRT.D

Apply trigonometry to general triangles

## Standards

HSG‑SRT.D.9 $(+)$Derive the formula $A = 1/2 ab \sin(C)$ for the area of a triangle by drawing an auxiliary...
HSG‑SRT.D.10 $(+)$Prove the Laws of Sines and Cosines and use them to solve problems.
HSG‑SRT.D.11 $(+)$Understand and apply the Law of Sines and the Law of Cosines to find unknown measurements in...

## Tasks aligned to this cluster

Seven Circles III