A polygon inscribed in a circle, luckily, has a derived formula already. It is:
A = (nr²/2)[sin (360/n)]
where n is the number of sides of the polygon and r is the radius of the circle. For this problem, n = 100 and r = 1. Substituting this to the equation,
A = (100(1)²/2)[sin (360/100)]
A = 3.14 square units
Thus, the 100-gon has an area of 3.14 square units.
Answer:
x = 9
Step-by-step explanation:
Calculate the slope m using the slope formula then equate to 2
m = 
with (x₁, y₁ ) = (4, - 8) and (x₂, y₂ ) = (x, 2 )
m =
=
= 2 ( multiply both sides by x - 4 )
2(x - 4) = 10 ( divide both sides by 2 )
x - 4 = 5 ( add 4 to both sides )
x = 9
Answer:
use the formula of two point form according to question