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Mathematics 7 Online
OpenStudy (anonymous):

if angle cfd= 12a + 45, find a so that FC is perpindicular to FD. I'm so confused..

OpenStudy (anonymous):

Hello.

OpenStudy (anonymous):

hey

OpenStudy (anonymous):

hi

OpenStudy (anonymous):

So lets start with what you know

OpenStudy (anonymous):

angle CFD=12a+45, and ray FC and ray FD are perpendicular.

OpenStudy (anonymous):

what does it mean when two rays are perpendicular?

OpenStudy (anonymous):

doesn't that mean like it's identical?

OpenStudy (anonymous):

it means they are at right angles to eachother

OpenStudy (anonymous):

oh yeah

OpenStudy (anonymous):

now i am assuming that when they are saying the angle CFD, they are talking about the measure of the angle CFD. What do you think?

OpenStudy (anonymous):

are you confused by the question?

OpenStudy (anonymous):

yeah forumula

OpenStudy (anonymous):

when i say the measure of an angle, I mean the number of degrees in the angle. is that better?

OpenStudy (anonymous):

yeah it is. It's confusing the way they say it.

OpenStudy (anonymous):

ok. so how many degrees are in a right angle?

OpenStudy (anonymous):

90 i think?

OpenStudy (anonymous):

that would be absolutely correct.

OpenStudy (anonymous):

now, if the measure of the angle is 90 degrees, how can you use the above equation to solve your problem? and dont worry, we'll getcha through this.

OpenStudy (anonymous):

12a + 45 = 90?

OpenStudy (anonymous):

you got it.

OpenStudy (anonymous):

thanks. Algrebra part is a piece of cake it's just the vocabulary that is confusing

OpenStudy (anonymous):

so you are good?

OpenStudy (anonymous):

yeah thanks man

OpenStudy (anonymous):

or do you need more help?

OpenStudy (anonymous):

that's it i appreciate the help

OpenStudy (anonymous):

my pleasure. you are going to get a non integer for an answer. take care spoderman

OpenStudy (anonymous):

ty

OpenStudy (anonymous):

:)

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