Question

angle c ?=
when angle a =70

Answer 1

looking for formuula

Answer 2

Is the drawing supposed to be a quadrilateral inscribed in a circle?

Answer 3

A + C = 180
so C is 110

Answer 4

180-70? yes its inside a circle

Answer 5

Inscribed means the vertices of the quadrilateral are points of the circle.

Answer 6

then no actually the shape is actually closed i shouldnt pay attention to the circle at all

Answer 7

wouldn't angle c have to be smaller than 70

Answer 8

no suzy :-)
angle c is 110
maybe hmm ._.

Answer 9

ok

Answer 10

ok thank you

Answer 11

I don't know. I'm thinking the drawing is incorrect. As is, there is no angle C shown.
What I think is that the drawing is supposed to be a problem set up to use the following theorem: If a quadrilateral is inscribed in a circle, then its opposite angles are supplementary.

Answer 12

Maybe