Sunday, August 1, 2010

NMOS 2010 Q13












a + c = 2 b

b + (b + c) + (a + b) = 180



5 b = 180


b = 180/5 = 36


a + c = 2 x 36 = 72



72 + 36 = 108 degree
Posted by at
Labels:

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)