Question

In the figure below, ΔABC is an isosceles triangle with vertex angle C and segment CD is tangent to the circle. If angle ACD measures 80 degrees, which is the measure of arc AB?

Answer 1

im not good with multiple solving

Answer 2

i dont get how its 50

Answer 3

sory i am wrong. still thinking

Answer 4

take your time...

Answer 5

2*80+c=180 => c=20

Answer 6

where did you get 2*80 from?

Answer 7

in triangle abc a=b and b=angle acd

Answer 8

sorry a=angle acd

Answer 9

how though does it just randomly happen or something?

Answer 10

sincd cd is tanget cd || ab

Answer 11

get it?

Answer 12

ok i get how they are parallel

Answer 13

since they are parallel due to parallel line property acd = cab