Question

can someone help me find the radius of circle k i need this asap please and thank you

Answer 1

@johnweldon1993 @midhun.madhu1987 @MaimiGirl

Answer 2

let's pick it up step by step. if arc ab=100 then arc adb becomes immediately solvable. it is 260 degrees

Answer 3

so the radius is 260 degrees

Answer 4

a radius cannot be measured in degress, only a unit value. At the point A, the line AC is tangent to the circle, therefore the circle and the line share that common point. Same goes for line BC at point B

Answer 5

so then whats the radius sorry I'm really bad at math and i kinda need this answer right now but i appreciate you trying to explain this to me

Answer 6

I'm afraid you misunderstood the question. It does not ask for the radius. It's asking for the equation which should be in the form x^2+y^2=something(radius). You won't find the equation solely by knowing the radius.

Answer 7

i know it doesn't but my teacher asked for the raius of circle k anyway

Answer 8

radius*

Answer 9

aha. okay I'll give it a shot and see if I can come up with it in the next couple of mins

Answer 10

thank u so much

Answer 11

hhhh oh wow the answer is right there. I was thinking so much in terms of angles, cosine law and sine law that I forgot to just look at the graph as it is. The radius is 5 of course. The values given are proportional to the squares on the graph. ac=7 (it's also 7 squares)

Answer 12

as they should be. The drawing was done clumsily so whoever sees it would think it's not proportional

Answer 13

your the best lol

Answer 14

you're welcome. I apologize for the awkward delay it shouldn't have taken me that long

Answer 15

i wish i could give u more than just one medal lol

Answer 16

um for question 2a i got 100 deg is that right ?

Answer 17

of course yes. It's the same measure as the arc AB

Answer 18

thank you i just want to make sure i get my answers right

Answer 19

okay. good luck with the rest :)

Answer 20

thank you :)