Question

In circle A, m BEC is 290°.сAWhat is the measure of ZBAC?70°O130°170°O360°

Answer 1

Hello!

As BEC = 290º and the full circle has 360º, we can solve it as:

`\begin{gathered} \circ-BAC=BEC \\ 360\degree-BAC=290\degree \\ 360\degree-290\degree=BAC \\ 70\degree=BAC \end{gathered}`

Answer:

70º.