Question

What is the measure of angle d?

Answer 1

157

Explanation:

In a cyclic quadrilateral (a quad with the points inscribed in the circumference of a circle), opposite angles add to 180. Putting this into a equation,
`7x+19=180`
`7x=161`
`x=23`
`6x+19=6*23+19=138+19=157`