Question

Geometry help

Answer 1

https://gyazo.com/cb1cf1d61cfda1db47f755ba1c879304

Answer 2

I'm pretty sure its 40

Answer 3

is that correct?

Answer 4

Go to this link:
http://mathbitsnotebook.com/Geometry/Circles/CRAngles.html
scroll down to two secants
You'll see that the angle should be
(80 - 40) /2
= 20 degrees

Answer 5

woops

Answer 6

forgot to divide by 2

Answer 7

Heck, that's one of those geometry theorems that don't come quickly to mind.
Glad to help out. :-)

Answer 8

do mind helping me with another one?

Answer 9

Okay, I'll try another one.

Answer 10

https://gyazo.com/03c8279a2c67d9d076f22022f84c9c8c

Answer 11

i used tan is that correct

Answer 12

and got 43.6

Answer 13

Hmm, I might have to work that out.

Answer 14

ok

Answer 15

Yes, tan = opp adj
tan = 20/21
tan = 0.9523809524
so we look up the arc tangent of 0.9523809524 and that's
= 43.603 degrees
seems you were right!!

Answer 16

yay thanks so much :)

Answer 17

u r welcome :-)