Question

I will medal you duh :)

WZ and XR are diameters.
find the measure of arc ZWX.

Answer 1

@bahrom7893

Answer 2

@satellite73

Answer 3

Vertical angles are equal. A central angle is equal to its arc. A semi-circle is 180 degrees. Use those facts to find your arc.

Answer 4

this is a sample question for next year, we have not learned the content yet.

Answer 5

Do you know what vertical angles are?

Answer 6

well none of them are "exactly" verticle...

Answer 7

They are. Because those chords are given to be diameters.

Answer 8

i'm not exactly understanding...

Answer 9

I think it is 180 +44 . Mertsj is off line, cannot confirm, @e.mccormick

Answer 10

the might be right it is one of my options? @Loser66

Answer 11

don't worry, e.mccormick is good at geometry as Mertsj.

Answer 12

i hope he responds.

Answer 13

sure, he is here, if he doesn't want to respond, he is not here, hihi... right? @e.mccormick

Answer 14

well are you any good at math? lol. i have one other ?

Answer 15

Looks like they want the angle measure here... ok...

Answer 16

hahaaha... let see. what you need,

Answer 17

@e.mccormick and @heytheredelilah I check already, yeah, bingo I am right, hehehe.

Answer 18

the figures are similar. give the ratio of the perimeters and the ratio of the areas of the first figure to the second.

Answer 19

but zwx... odd to me to see it that way...

Answer 20

i have all these sample ?s i need to do for next year before i take my final.

Answer 21

the angle from the center of the circle. that's the property, since the question just ask about the measure of the arclength, no need to consider the negative or positive angle. hehe.

Answer 22

ooh okay.. a lot of this i have yet to learn >,< did you get my other question?

Answer 23

where?

Answer 24

Yes, but an arc length assumes you know a radius...

Answer 25

no, friend, hhmmmm, the geometry expert like you makes that question?

Answer 26

For the similar, use the sides to do the perimiter ratio. The area is the square ratio and if it was 3d, the volume would be the cubed ratio.

Answer 27

@e.mccormick take a look at http://en.wikipedia.org/wiki/Inscribed_angle

Answer 28

hey, this just 2d , don't talk about 3d

Answer 29

I am used to dealing with arc in this sense: http://www.mathwords.com/a/arc_circle.htm

Answer 30

you know, idk any of this stuff ,they are samples...

Answer 31

@heytheredelilah where is your new one?
@e.mccormick actually, I check from my vietnamese website. first, and then search it in English to give you that link, hihih...

Answer 32

@Loser66 it is right about your circle drawing,.

Answer 33

above*

Answer 34

open new one,please, too lazy to find where it is. XD

Answer 35

Did you do the ratio between the known sides?