Question

If p || , m<7 = 131°, and m<16 = 88°, find the measure of the missing angle m<9= ?

Answer 1

The angle 16 is given as,m<16 = 88°.

The sum of angle 16 and angle 9 is 180°.

`m\angle16+m\angle9=180^(\circ)`
`88^(\circ)+m\angle9=180^(\circ)`
`m\angle9=180^(\circ)-88^(\circ)`
`m\angle9=92^(\circ)`

Thus the value of angle 9 is ,

`m\angle9=92^(\circ)`