1. a pyramid has a base area of 10in^2 and a height of 3.09 in.what is the volume of the pyramid?2. A cylinder has a diameter of 14ft. and a height of 10 ft. what is the volume of the cylinder3. Which of the following is the best approximation of the volume of a sphere with a 7 cm. radius.A.1744 cm^3B.1436 cm^3C.615 cm^3D.462 cm^34. the volume of a sphere is 4/3 pie cm^3. What is the diameter of the sphere?5. The volumes of two similar solids are 20 cm^3 and 540^3. Which is the ratio of the corresponding sides of the larger figure to the smaller figure.
Accepted Solution
A:
1. V=1/3*b*h=1/3*10*3.09=1.03*10=10.3 in³
2. V=b*h b=πr² r=d/2=14/2=7ft V=πr²*h V=π*7²*10=490π ft³ If it should be approximate V≈1539.38 ft³