In circle O, CD = 44, OM = 20, ON = 19, , (The figure is not drawn to scale.)
|dw:1370797643651:dw|
|dw:1370797642613:dw|
this it
so these are all arc lengths?
CM=MD(perpendicular line from centre to chord bisects chord) Therefore, MD=44/2=22 22^2+20^2=OD^2(Pyth.theorm) OD=2(221)^(1/2) radius=2(221)^(1/2) radius=2(221)^(1/2) Therefore 19^2+FN^2=884(Pyth.theorm) FN=(523)^(1/2) EN=FN(perpendicular line from centre to chord bisects chord) therefore EN=2[(523)^(1/2)]=45.7383865(u round it off)
im lil but confused with this
Sorry Im In college So Its a Bit Hard To Explain Lol But Basicly Your Using Simple Functions To Solve The Problem
ok thankx
so whats differnet @Jhannybean
Nothing, i couldn't tell what Yumira's c,e,d,f were
20 Was C And Sorry Im Good At Math But HORRIBLE drawer Lol
Good job @Yumira
thankx @Yumira @Jhannybean
No Problem :D !
a. Find the radius. If your answer is not an integer, express it in radical form. b. Find FN. If your answer is not an integer, express it in radical form. c. Find EF. Express it as a decimal rounded to the nearest tenth.
|dw:1370798470556:dw|
Join our real-time social learning platform and learn together with your friends!