Question

Need help with my homework circles and arcs??
will medal an fan!!

Answer 1

Find M<ZX

Answer 2

I don't see a Z?

Answer 3

sorry let me fix it

Answer 4

Alright! So what's the total degree measure of a circle?
The line WZ splits the circle in half, right?

Answer 5

the whole circle is 360 and half is 180

Answer 6

@ijakez

Answer 7

Yup!
So because WZ splits the circle in half, all of the angles from W to Z total up to be 180, right?

Answer 8

yes so it would be 70

Answer 9

@ijakez

Answer 10

You're getting ahead of yourself, but good line of thinking.
From that you determined that ZY=70, but the problem asks for ZX. ZX=ZY+YX
You just figured out that ZY=70, and YX is given as 85.
ZX=70+85=155

Answer 11

ok i get it its not asking just of angle ZY, so i would add ZY and Xy to get my final answer

Answer 12

Yeah!
It's asking for ZX, and ZX is ZY+XY

Answer 13

ok. your great can i ask you another one

Answer 14

this one makes no since

Answer 15

Find the length of the arc shown in orange. leave your answer in terms of pi

Answer 16

@ijakez

Answer 17

arclength = radius * angle
what's the total angle covered by orange?
what's the radius?

Answer 18

so the total angle in orange is 330 degrees and the radius is 72

Answer 19

@ijakez

Answer 20

ok so how do it put it into pi form

Answer 21

you mean radians?

Answer 22

i have to put it into pi form.

Answer 23

is it degrees or radians?
If you have to find the answer in degrees, multiply your final answer by (pi/180)

Answer 24

my opitions are
16.5 pi in
33 pi in
60 pi in
66 pi in

Answer 25

@ijakez

Answer 26

sorry, I told you the wrong idea!
the circumfrance (distance around the circle) = pi*2*r
r= 18, so the total circumfrance is 36pi.
330 degrees is 11/12 of the total circle. 11/12 of 36 is 33

Answer 27

how did you get 11/12