What is the length of AC to the nearest tenth? In ABC as shown, AC I BC, AB = 10.3, and
BC = 5.
А
10.3
b
B
С
5
5

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.