1 7 Solving Problems Involving Composite Objects What
1. 7 Solving Problems Involving Composite Objects
What is a composite object? • It is an object which is made up out of two or more objects Hemisphere + Cylinder Cone + Cylinder Prism + Pyramid
Determine the volume of this composite object to the nearest square meter Use the formula for the volume of a right rectangular prism. V=l∙w∙h V = (6. 7)(2. 9) V = 56. 347 m 3 • Use the formula for the volume of a right rectangular pyramid. V = 1/3 l ∙ w ∙ h V = 1/3 (6. 7)(2. 9)(2. 1) V = 13. 601 m 3 • Volume of the composite object is: 56. 347 + 13. 601 = 69. 948 • prism + pyramid
Determine the volume of this composite object to the nearest tenth of a meter Use the formula for the volume of a right rectangular prism. V=l∙w∙h V = (6. 7)(2. 9) V = 56. 347 m 3 • Use the formula for the volume of a right rectangular pyramid. V = 1/3 l ∙ w ∙ h V = 1/3 (6. 7)(2. 9)(2. 1) V = 13. 601 m 3 • Volume of the composite object is: 56. 347 + 13. 601 = 69. 948 • prism + pyramid The volume of the composite object is approximately 69. 9 m 3.
POWERPOINT PRACTICE PROBLEM Determine the volume of this composite object to the nearest tenth of a cubic centimetre.
Determine the surface area of this composite object to the nearest square foot hemisphere + cylinder
Determine the surface area of this composite object to the nearest square foot hemisphere + cylinder
Determine the surface area of this composite object to the nearest square foot hemisphere + cylinder Area of Curved surface = 2πr x h Area of a base = πr² Area of 2 bases = 2πr²
Determine the surface area of this composite object to the nearest square foot hemisphere + cylinder Area of Curved surface = 2πr x h Area of a base = πr²
Determine the surface area of this composite object to the nearest square foot hemisphere + cylinder The surface area of the composite object is approximately 88 square feet. Area of Curved surface = 2πr x h Area of a base = πr²
POWERPOINT PRACTICE PROBLEM Determine the surface area of this composite object.
HOMEWORK O PAGES: 59 - 61 O PROBLEMS: 3, 4, 6, 9, 10 a, 11, 13
Conversion Factors and Scientific Notation
Chapter 1 TEST O TUESDAY, July 15 OTO REVIEW: O Page: 64 - 66 O Problems: 3 a, b; 6, 7, 9, 15, 17, 20, 25, 26
- Slides: 23
