Which set of numbers CANNOT represent the lengths of the sides of a triangle A)6,8,11
B)7,5,6
C)9,12,19
D)7,18,11​

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.