Respuesta :

Supergirl200

Answer:

9p = 81 degrees

Step-by-step explanation:

All the angles in a triangle equal 180 degrees in total.

So the equation would be:

9p + 7p + 4p = 180

20p = 180

p = 9

So just plug it in:

9(9)                            7(9)                        4(9)

81 degrees            63 degrees            36 degrees