Question

If m of angle A = 15° and m arc CD = 55°, then m of arc CG = https://media.glynlyon.com/g_geo_2012/7/group177.gif

Answer 1

ARC GE

Answer 2

instead of CG

Answer 3

understood, so you want to find GE

Answer 4

look at the pic,

A is outside angle :
CD is far arc
GE is near arc

Answer 5

got it

Answer 6

use the formula :-

outside angle = (far arc - near arc) / 2

A = (CD-GE)/2

15 = (55-GE)/2

30 = 55-GE

Answer 7

GE = ?

Answer 8

25

Answer 9

\(\color{red}{\checkmark}\)

Answer 10

thanks!

Answer 11

yw