Mathematics 44 Online
OpenStudy (anonymous):

Solve the questions in the attachment and be suure to show work and provide an explanation why.

OpenStudy (anonymous):

OpenStudy (anonymous):

SOMEONE HEL

OpenStudy (anonymous):

P

OpenStudy (anonymous):

how in the heck do you do those?

OpenStudy (anonymous):

you re not hlping

OpenStudy (anonymous):

you're not trying

OpenStudy (anonymous):

YEA I AM

OpenStudy (anonymous):

oh good

OpenStudy (anonymous):

For the second one, angle ADB is equal to angle AEB because of inscribed angle theorem. and then angle ACB is twice angle AEB because of angle at the center theorem.

OpenStudy (anonymous):

CANyou show me the ligt work for all f them

OpenStudy (anonymous):

and explan why

OpenStudy (anonymous):

I didnt do the actual proof out. but if you look up the two theorems, I am sure you can find the proof clearly written somewhere.

OpenStudy (anonymous):

and that means for the first one, angle ADB is 1/2 of angle ACB based on the same two theorems

OpenStudy (anonymous):

yu have t show me themath part2

OpenStudy (anonymous):

okay, i remember this stuff now. i do not have a scanner so I cant write it all out, but I can try to explain it more clearly

OpenStudy (anonymous):

and you can write math out... right? there isnt math to it. its literally circle theorem.

OpenStudy (anonymous):

I can try to explain this for each. Look at the first picture.

OpenStudy (anonymous):

the proof for the angle at the center part is : http://www.mathsrevision.net/gcse/pages.php?page=13 just scroll down. if you follow the same process you can get it

OpenStudy (anonymous):

see if this is what you needed..

OpenStudy (anonymous):

http://www.benjamin-mills.com/maths/Year11/circle-theorems-proof.pdf the first two pages explain the two theorems I was using.

OpenStudy (anonymous):

Just so you know, the first three are wrong.

OpenStudy (anonymous):

oh wel said not sure if they are right.. what si the right answer? my daughter just finished this work in school so she was helping me

OpenStudy (anonymous):

well i gotta go. i will be back tomorrow to get help with my problems..lolhave a good night and thanks

OpenStudy (anonymous):

hry ally cat

OpenStudy (anonymous):

for the first one, assuming AC=CB and C is the center, such at that ACB is an isosceles triangle, extend a line from C to D, this should also be equal to AC and CB. the angle CAD=angleCDA because ACD is an isosceles triangle. .... more to come in a sec

OpenStudy (anonymous):

which we put is a triangle. thats not right?

OpenStudy (anonymous):

technically it is a triangle, but shes is looking for the ANGLE of ADB.

OpenStudy (anonymous):

not on the first one..didnt it just ask what it is? i didnt know it asked for an angle too...lol same for the second one..it asked what it was, so i didnt put the angle.. lol

OpenStudy (anonymous):

OpenStudy (anonymous):

the little < symbole means angle.

OpenStudy (anonymous):

<DCE = 2*124=248

OpenStudy (anonymous):

for the first one, <ADB= (1/2)*150 = 75 degrees

OpenStudy (anonymous):

second one, <ACB = 2*66=132 degrees and <ADB = <AEB = 66 degrees

OpenStudy (anonymous):

already did the third one, so the fourth is = 180-2*25=180-50=130 degrees

OpenStudy (anonymous):

along with the those questions , can you pu a xplaiation for each 1

OpenStudy (anonymous):

have you been taught the circle theorems?

OpenStudy (anonymous):

can you just explain it

OpenStudy (anonymous):

the angle theorems take a lot of explaining, which i am not the best at doing.

OpenStudy (anonymous):

ugh .... just explain how you got each answer

OpenStudy (anonymous):

you need to knwo the angle theorem to get the answer. its that fluttering simple. I gave you the answers, now go look up the theorem and quit spamming the boards with your constant comments. I am trying to help you and all you are being is rude and inconsiderate.

OpenStudy (anonymous):

explain how you got each answer ok???

OpenStudy (anonymous):

that simple

OpenStudy (anonymous):

the first one is based on the circle theorem angle at the center. you know BASED ON THE THEOREM, that the angle ACB is twice angle ACB... done

OpenStudy (anonymous):

that is not an expanation xplain t step by step (theorm)

OpenStudy (anonymous):

OpenStudy (anonymous):

just ixplain it

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