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Mathematics 16 Online
OpenStudy (anonymous):

Couls someone help me fix this problem? (Find the measure of an arc circle. )

OpenStudy (anonymous):

OpenStudy (anonymous):

This problem looks super easy, but all my answers come out wrong, can anyone pls pls explain this to me?

ganeshie8 (ganeshie8):

subtract it from 180

OpenStudy (anonymous):

subtract 175.86-180=-4.14

OpenStudy (anonymous):

4.14 is my answer :D

ganeshie8 (ganeshie8):

correct

OpenStudy (anonymous):

Do you think you could help with a similar problem im having trouble with?

ganeshie8 (ganeshie8):

sure, did u get why we subtracted it from 180 and why it worked ha...

OpenStudy (anonymous):

180 is half right. :)

OpenStudy (anonymous):

half the line/ circle.

OpenStudy (anonymous):

This is another im stuck with. i keep getting the wrong answer. :/

ganeshie8 (ganeshie8):

use this :- external angle = (far arc - near arc)/2

OpenStudy (anonymous):

3x+13-5x-20/2

OpenStudy (anonymous):

like that?

ganeshie8 (ganeshie8):

not exactly

OpenStudy (anonymous):

aww.. :/

OpenStudy (anonymous):

What do you mean then? x)

OpenStudy (anonymous):

3x+13-8x+48/2

OpenStudy (anonymous):

i got 37-5x. That isnt right either. :/

ganeshie8 (ganeshie8):

ganeshie8 (ganeshie8):

thats your external angle

ganeshie8 (ganeshie8):

the farther on right side is 'far arc'

OpenStudy (anonymous):

5x-20-8x+48/2

ganeshie8 (ganeshie8):

the middle one is the 'near arc'

ganeshie8 (ganeshie8):

yes, let me set it up for u

OpenStudy (anonymous):

3x :)

OpenStudy (anonymous):

i got 3x as my answer. o: and ok.(:

ganeshie8 (ganeshie8):

external angle = (far arc - near arc)/2 3x+13 = (8x+48 - 5x + 20)/2

ganeshie8 (ganeshie8):

solve x

OpenStudy (anonymous):

14!!

ganeshie8 (ganeshie8):

correct

OpenStudy (anonymous):

Thanks once again!!(: <3

ganeshie8 (ganeshie8):

yw :)

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