Hello,
The nonagon, polygon with 9 sides, can be divided in 9 triangles which area is
a*c/2
a is the apothem et c the side
Center's angle is 360°/9=40°
as a/14=cos 20°, and (c/2)/14=sin 20°
a*c/2=14*14*sin 20°*cos 20°=14*7*sin40°=98*sin 40°=62,993185...
Area of the nonagon is 9*98*sin 40°=882*sin 40°=566,93867... (in²)
Answer:
Yes
Step-by-step explanation:
12 - 8 / 4 - 2 --> Rise over Run
4/2 or 2
This is the slope
Y-Intercept:
12 (y2) - 8 (y1) = 4
Step-by-step explanation:
A,B, and C are collinear, and B is between A and C. The ratio of AB to BC is 1:1 of A IS AT (-1,9) and B (2,0)
to find out point C use section formula
A is (-1,9) that is our (x1,y1)
that is our (x2,y2)
ratio is 1:1 that is m and n
Plug in the values in the formula
Answer C is (5,-9)
So there is 50 in each one stack and there a 10 stacks so it will be 50*10=100
Answer:
8.28
You have to do 1.38 times 2 and then times 3