Acone is placed inside a cylinder as shown. the radius of the cone is half the radius of the cylinder. the height of the cone is equal to the radius of the cylinder. what is the volume of the cone in the ms of the radius

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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.