This document discusses the volume formulas for prisms and pyramids. It provides exercises to calculate volumes of various prisms and pyramids using the given dimensions. The key formulas covered are: - Volume of prism = Base area x Height - Volume of pyramid = 1/3 x Base area x Height - Pyramid volume is always 1/3 the volume of a prism with the same base area and height.

1. Prism & Pyramid 1. Introduction 2. Volume of Prism 3. Volume of Pyramid 4. Test

2. Try to group the following items : Prism Pyramid

3. What you have found? Next

4. Exercise 2.1 Calculate the following area units 2 OK 1 unit 1 unit

5. Exercise 2.2 Calculate the number of the cube 1 unit 1 unit pieces of cube OK Hints

6. Exercise 2.3 If the height of cube is 1 unit. Calculate the volume of the total of cubes 1 unit 1 unit unit 3 Hints OK

7. Exercise 2.4 Calculate the volume of this cube 1 unit 1 unit unit 3 Hints OK

8. Volume of Prism: height length x width x height cross section area x height length width Next

9. Quiz 1 Calculate the volume of the prism 12cm 2cm 20cm cm 3 OK Hints

10. What is the ratio relationship between prism and pyramid if the base area is same? Next

11. Try to use pyramid to form a prism:

12. = 3 Next

13. = ⅓ Therefore, Next Volume of Volume of ⅓ x base area x height

14. Exercise 3.1 Calculate the volume of the pyramid Step 1 : (Volume of prism) cross-sectional area x height x = cm 3 Step 2 : (Volume of pyramid) ⅓ x volume of prism = = = ⅓ x = cm 3 OK Hints 13cm 2.5cm 17cm

15. Quiz 2 Calculate the volume of the pyramid cm 3 15cm 3cm 24cm OK Hints

16. Test Q1 Calculate the volume of the package box cm 3 80cm 50cm 30cm OK Hints

17. Test Q2 Calculate the volume of the wineglass cm 3 OK Hints 4cm 5cm

18. Test Q3 If the base area and the height of pyramid is same as another prism, what is the ratio of volume of pyramid and prism? OK Hints ? : ?

19. Test Q4 Compare with 2 prism, which of the follow statement is true? A. The volume of Prism 1 is larger B. The volume of Prism 2 is larger C. The volume of Prism 1 & 2 is same D. None of the above OK Hints 2cm 5cm 3cm Prism 1 1.5cm 1cm 22cm Prism 2

20. Test Q5 Compare with 2 pyramid, which of the follow statement is true? A. The volume of Pyramid 1 is larger B. The volume of Pyramid 2 is larger C. The volume of Pyramid 1 & 2 is same D. None of the above OK Hints Pyramid 1 3cm 7cm 3.5cm 2cm 2cm 15cm Pyramid 2