Question

Find the measure of angle K.

Answer 1

121'
48 plus 70=118
360-118=242
242/2=121

Answer 2

In a kite, two opposite angles are equal. In this case, angle K is equal to angle M. And since the angles in a kite add up to 360 in a quadrilateral, we can get the equation, 
2x+48+70=360
where x is angle K or angle M
and so solve for x
2x+118=360
2x=242
x=121
Angle K = 121 degrees
Hope this helps.