Question

Equilateral triangle ABC is inscribed in circle X. What is the measure of arc AB?

Answer 1

The size of one of the angle in the triangle

Answer 2

In this case, it would be <C

Answer 3

got pic?

Answer 4

X is located in the triangle

Answer 5

a. 30
b. 60
c. 90
d. 120
e. 240

Answer 6

how you think what measure has angle A and B and C ?

Answer 7

hints:

* All angles of an equilateral triangle are equal

* For any triangle, the three angles add to 180 degrees (using the previous hint, you can say x+x+x = 180 and solve for x)

* you'll use the inscribed angle theorem

http://static.blog.beatthegmat.com/mba/files/2012/05/E89000b.png

which says that the arc measure is double the inscribed angle (the inscribed angle cuts off the arc from the circle)