standard_description: Derive the formula A = 1/2 ab sin(C) for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.
problem_activity: Below is circle
$$A$$
:
[IMG]
What is the
$$m\angle BAC$$
in degrees to the nearest hundredth?
What is the
$$m\widehat{BC}$$
in radians to the nearest hundredth?


aligns: no