Given a regular 20-gon ( a 20 sided polygon )
The measure of each interior angle will be given by:
where n is the number of sides
Substitute with n = 20
So, the measure of each interior angle =
The sum of exterior angles = 360
So, the measure of each exterior angle = 360/20 = 18
Answer:
only one has the value of -12
Step-by-step explanation:
like what
X + x + x + 20 + 10 = 180
(combine like terms)
3x + 30 = 180
3x=180-30
3x=150
x=150/3
x=50
Answer:
-4
Step-by-step explanation:
negative plus a negative means add
You add the number then keep the negative sign
Answer: -107pi/45 radians
