Answer:
c. 2
Explanation:
8 and 10 are a bit off. 8 is exactly on 36, but the number is 37.9
10 is also exactly on 48 too, but the number is 49.2 not 48
(I kinda traced over the line so you can understand better)
The area of the circle is determined through the equation,
A = πr²
Plug in the value of area
36 in² = πr² ; r = 3.385 in
The formula for the circumference of the circle is,
C = 2πr
Substitute the value of radius,
C = 2π(3.385 in) = 6.77π in
Thus, the circumference of the circle is 6.77π inches.
Hello,
Sorry, i don't know the theorem in English
"Théorème des angles extérieurs :
la mesure en degré d’un angle extérieur est égale à la moitié de la différence des arcs interceptés par ses côtés."
Here
2x+15=1/2(10x+20-80)
==>4x+30=10x-60
==>6x=30+60
==>6x=90
==>x=15 °
Center- (4,5)
I am unsure of the radius
