Respuesta :

Wildstormcat
All you have to do to solve DEF is to add the angles given to you, which are 130° and 90°.
You will get 220°.

Since the rest of the circle equals DEF, and there are 360° is a circle.
You will need to subtract 220° from 360° to get DEF.

360 - 220 = 140°

Therefore,

DEF = 140°