85°
X
2 Work out angle x.
600

60+85=145

180-145=35

Step-by-step explanation:

the whole triangle is 180 °

Step-by-step explanation:

85 times 2 is 55.6 mathematics which is 4times 4

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°