Question

What is the measure of XY shown in the diagram below?
MY WORK, AND THE PICTURE INCLUDED IN THE NEXT POST.

Answer 1

110 - 39 = 72
72/2 = 35.5

Every time I input this answer it comes out as 32. And I'd like to know why.

Answer 2

its just an average ... except thing of that inside arc as a negative

Answer 3

(110 - B)/2 = 39

Answer 4

110 - B = 78

32 - B = 0 is correct

Answer 5

Well, the answer that APEX gives me is 32.
And I've worked it out backwards and forwards for myself 7 times, and I keep getting 35.5.

Answer 6

even if you add instead of subtract the arcs ... you get the same value, just negated

Answer 7

(100+B)/2 = 39

B =-32 , just drop the sign

Answer 8

i see that you are putting the angle in for an arc ....

Answer 9

Well.. yeah.. that is what they're asking for I suppose.

Answer 10

just remember to average the arcs to get the angle ... you have 1 arc and an angle soo

(110+B)/2 = 39

NOT (110+39)/2 = B

Answer 11

(114 + B)/2 = 36
I would use for this problem? V

Answer 12

no, you are given 2 arc lengths ...

Answer 13

So subtract? >.<

Answer 14

yes, (outer - inner)/2

Answer 15

39 degrees, right?

Answer 16

correct