Given the degree of measure of angle KJH is 66 degrees find the measure in radians​

Me with this one question, and i'll upvote the brainliest answer

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?