Answer:
3240°
Step-by-step explanation:
For a regular icosagon,
sum of interior angles measure=180(n-2)°
180(20-2)
180(18)=3240°
Answer:
-1.5
Step-by-step explanation:
25 because a triangle is 180 so those two angles equal 155 180-155 is 25
Step-by-step explanation:
∠W and ∠Z are supplementary