question_answer

The measure of angles of a heptagon are\[m{}^\circ ,\text{ }2m\]\[-\text{ }12{}^\circ ,\text{ }3m\text{ }-\text{ }18{}^\circ ,\text{ }3m\text{ }-\text{ }4{}^\circ ,\text{ }2m\text{ }-\text{ }10{}^\circ ,\text{ }6\text{ }\left( m-2 \right){}^\circ ,\]\[\left( m\text{ }+\text{ }2 \right){}^\circ \]. Find the value of m.

A)  \[33{}^\circ \]                    

B)        \[53{}^\circ \]

C)  \[45{}^\circ \]                    

D)        \[48{}^\circ \]

E)  None of these