tires become worn? 8. A small porous solid is in the shape of a cube. Its volume is determined in two ways. First, it is computed from a measurement of the cube's edge. Then it is obtained by indirect measure- ment using a graduated cylinder partly filled with water. (a) Why might there be a consider- able difference between the two values of the volume thus obtained? (b) What does this dif- ference represent? 9. The sides of two squares are in the ratio of 2 to 1. (a) What is the ratio of their areas? (b) If the corresponding dimensions of any two similar plane figures are in the ratio of 2 to 1, explain why their areas will be in the same ratio as that of the two squares. 10. (a) If the length of each edge of a cube is dou- bled, what happens to the volume? (b) An en- larged model of a small solid statue is made by doubling each dimension of the original. How does the volume of the enlarged model compare with that of the original?
tires become worn? 8. A small porous solid is in the shape of a cube. Its volume is determined in two ways. First, it is computed from a measurement of the cube's edge. Then it is obtained by indirect measure- ment using a graduated cylinder partly filled with water. (a) Why might there be a consider- able difference between the two values of the volume thus obtained? (b) What does this dif- ference represent? 9. The sides of two squares are in the ratio of 2 to 1. (a) What is the ratio of their areas? (b) If the corresponding dimensions of any two similar plane figures are in the ratio of 2 to 1, explain why their areas will be in the same ratio as that of the two squares. 10. (a) If the length of each edge of a cube is dou- bled, what happens to the volume? (b) An en- larged model of a small solid statue is made by doubling each dimension of the original. How does the volume of the enlarged model compare with that of the original?
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please help with question number 8,9 and 10 (both part A and B)
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