1. Fill a conical container with a bottom area of 94.2 square cm and a height of 30 cm with water, and then pour the water into a cylindrical container with a bottom area of 31.4 square cm. What is the height of water in the container? 2. Cut a 13 cm long cylindrical wooden stick into a cone with the same height as its bottom, and just cut off 10 cubic centimeters. What is the original volume of this wooden stick? 3. Point a | \ 8cm← | \ | \ |This is a right triangle cardboard

1. Fill a conical container with a bottom area of 94.2 square cm and a height of 30 cm with water, and then pour the water into a cylindrical container with a bottom area of 31.4 square cm. What is the height of water in the container? 2. Cut a 13 cm long cylindrical wooden stick into a cone with the same height as its bottom, and just cut off 10 cubic centimeters. What is the original volume of this wooden stick? 3. Point a | \ 8cm← | \ | \ |This is a right triangle cardboard

Question 1: 94.2 × 30 △ 3 △ 31.4 = 2826 △ 3 △ 31.4 = 942 △ 31.4 = 30 (CM) question 2: 10 △ 2 / 3 = 15 (cubic cm) analysis: the volume of a cone is equal to 1 / 3 of the volume of a cylinder with equal height and equal bottom, and the volume eliminated is 2 / 3 of the cylinder question 3: 6 × 6 × 3.14 × 8 △ 3 = 123.04 × 8 △ 3 = 904.32 △ 3