standard_description: Use the structure of an expression to identify ways to rewrite it. For example, see x^(4) – y^(4 )as (x^(2))^(2 )– (y^(2))^(2), thus recognizing it as a difference of squares that can be factored as (x^(2 )– y^(2))(x^(2 )+ y^(2)).
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