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Mathematics 14 Online
OpenStudy (thatcreepyboy):

In circle A shown below, Segment BD is a diameter and the measure of Arc CB is 36°: Points B, C, D lie on Circle A; line segment BD is the diameter of circle A; measure of arc CB is 36 degrees. What is the measure of ∠DBC? 36° 72° 18° 54°

OpenStudy (thatcreepyboy):

OpenStudy (thatcreepyboy):

@jhonyy9

OpenStudy (otherworldly):

@ThatCreepyBoy u there?

OpenStudy (thatcreepyboy):

@OtherWorldly yes

OpenStudy (otherworldly):

<DBC which angles do u think can't be the answer

OpenStudy (thatcreepyboy):

18

OpenStudy (otherworldly):

ok any other angles u think wouldn't be correct?

OpenStudy (thatcreepyboy):

uh, 54

OpenStudy (otherworldly):

ok so which one do u think it is? XD

OpenStudy (thatcreepyboy):

72 degrees :0?

OpenStudy (otherworldly):

look at the angle it looks like it would be less that half of a 90 degree angle ( 45 degrees)

OpenStudy (thatcreepyboy):

36?

OpenStudy (otherworldly):

one second i think i did something wrong XD

OpenStudy (otherworldly):

i think u are right about the angle being 72 degrees because the angle is more than half of a 90 degree angle so....... i guess it is 72 degrees :)

OpenStudy (otherworldly):

if u think it is something else let me know and we will discuss i just think it is 72 degrees because it looks like the angle is more than 45 degrees

OpenStudy (agent0smith):

|dw:1475534335660:dw|

OpenStudy (agent0smith):

|dw:1475534377454:dw|

OpenStudy (agent0smith):

Try solving from there

OpenStudy (thatcreepyboy):

I'm still thinking 72

OpenStudy (agent0smith):

You have an isosceles triangle in that last triangle. You have one angle, see if you can find the other two (they're equal btw)

OpenStudy (thatcreepyboy):

36?

OpenStudy (agent0smith):

|dw:1475536855851:dw|Solve for x.

OpenStudy (thatcreepyboy):

I don't know.. >_<

OpenStudy (agent0smith):

There's three angles inside that triangle. If you add them up, what does it equal? You should know many degrees in a triangle.

OpenStudy (thatcreepyboy):

I'm still confused..

OpenStudy (agent0smith):

Look at the triangle. See the three angles inside it? Add them up. Set equal to the number of degrees in a triangle (which you should know...).

OpenStudy (thatcreepyboy):

Ugh I'm not good at this..

OpenStudy (agent0smith):

There's 180 degrees in a triangle. x + x + 144 = 180

OpenStudy (thatcreepyboy):

Oh I thought it was that answer for a minute.

OpenStudy (thatcreepyboy):

@agent0smith get your butt back here. What do I have to do now?

OpenStudy (agent0smith):

What do you think you have to do... solve for x. It's simple algebra.

OpenStudy (thatcreepyboy):

I'm not that smart in math like other people .-..

OpenStudy (otherworldly):

@ThatCreepyBoy do u get it yet

OpenStudy (otherworldly):

x+x + 144 = 180 look at ur choices what angle looks like it could work for x ..........if u plug it in x + x + 144 it should equal 180 so plug in each of ur choices if u have to into x and c if it gives u 180 or not

OpenStudy (thatcreepyboy):

Oh I think i got it

OpenStudy (thatcreepyboy):

@OtherWorldly So I do 36 + 36?

OpenStudy (otherworldly):

36 + 36 + 144 does that equal 180??????

OpenStudy (otherworldly):

@ThatCreepyBoy

OpenStudy (thatcreepyboy):

No

OpenStudy (thatcreepyboy):

It equals 216

OpenStudy (otherworldly):

ok then to would be........?

OpenStudy (thatcreepyboy):

to?

OpenStudy (otherworldly):

it would be * ^_^ seriously u get stuck on that just get the answer

OpenStudy (otherworldly):

omg @ThatCreepyBoy the answers 18

OpenStudy (thatcreepyboy):

Sorry.

OpenStudy (otherworldly):

^_^ its ok not ur fault

OpenStudy (thatcreepyboy):

Okay, thank you tho.

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