In circle 0. points A and B lie on the circle such that OA= 2x+ 9 and OB = 27-x. Which of the following represents the length of the radius of circle 0?
1) 6
2) 18
3) 21
4) 42

x=half

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

step-by-step explanation:

because it just is

there were a lot of them but the first one to pop up on a google search was bts