Question

What is the value of x?

47
33
28
56

Answer 1

that's tough
very tough
what have you learned so far?

Answer 2

\(c = \dfrac{a + b}{2} \)

Answer 3

nice formula, but how did you get that? throwing formulas do not really give people intuitive ideas

Answer 4

Hint: See
http://www.regentsprep.org/regents/math/geometry/gp15/circleangles.htm

Answer 5

@mathmate that actually did help, thank you !

Answer 6

that still doesn't answer how the formula came to be

Answer 7

x=a/2+b/2=(a+b)/2 (exterior angles)
a/2 and b/2 follow from the central angle theorem.
@nincompoop

Answer 8

@dani_00
You're welcome! :)

Answer 9

@dani_00 Did you get an answer?

Answer 10

i got 28 but im not sure if its correct

Answer 11

@mathstudent55

Answer 12

@dani_00
Look at the link I gave you, scroll to item #4, and apply the formula to find x.
Please tell me what you get.

Answer 13

i got 47

Answer 14

thank you @mathmate

Answer 15

Correct!
You're welcome! :)

Answer 16

That is it!