Find the lateral area of each solid. Round to the nearest tenth if necessary. The square pyramid has a slant height of 25.6 mm.

a.
2,662.4 mm2

b.
128 mm

c.
6,826.7 mm3

d.
1,638.4 mm2

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.