Question

Please fill in the blanks?

Answer 1

1. `m/_MNQ=m/_color(red)P + m/_Q`
   `color(white)("XXX")`Reason: `color(red)("Interior angles of a triangle sum to "180^circ`
2. `color(red)(132^circ)=color(red)(3x)+54^circ`
3. `x=color(red)(26^circ)`