Question

What is the angle of this triangle

Answer 1

`\text{Given that the formula for Area is } (1)/(2) \text{ab} \sin(\text{c})`


`\text{Area = } (1)/(2) \text{(12)(8)} \sin(\text{65}\textdegree)`


`\text{Area = }43.5 \text{ cm}^2`

Answer 2

`A_\Delta=(1)/(2)\sin65^o\cdot8\cdot12=48\sin65^o\\\\\sin65^o=0.9063\\\\P_\Delta=48\cdot0.9063=43.5024\approx43.5\ cm^2`