Answer:
A. 
Step-by-step explanation:
Given:
The regular polygon is a decagon having 10 sides.
Perimeter of the given polygon is,
.
We know that, perimeter of a regular polygon of
sides is given as,
where,
is the length of each side.
Here, 
Plug in these values and solve for
. This gives,

Therefore, the side length of the given polygon is 
Answer:
slope = - 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 3x + 2 ← is in slope- intercept form
with slope m = - 3
Answer:
B. Angles that add up to 180°
Step-by-step explanation:
I think that's the answer because supplementary angles add up to 180°
Answer:
sqrt(A /pi ) = r
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
Divide each side by pi
A / pi = r^2
Take the square root of each side
sqrt(A /pi ) = sqrt(r^2)
sqrt(A /pi ) = r
Answer:
6 is the best answer
6/8
Step-by-step explanation:
2/3<6/8<7/8