Gr 12 Math Lit: Ch 4.3 Volume and Surface Area
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Questions and Answers

What is the unit of measurement for volume?

  • mm²
  • km
  • cm³ (correct)
  • Which formula is used to calculate the volume of a cylinder?

  • Volume = length × breadth
  • Volume = π × radius × height
  • Volume = length × breadth × height
  • Volume = π × radius² × height (correct)
  • Why is it important to convert units before calculating volume?

  • To ensure all measurements are in the same units (correct)
  • To ensure the calculation is difficult
  • To make the answer smaller
  • To make the answer bigger
  • What is the purpose of calculating the volume of a foundation?

    <p>To determine how much concrete is needed</p> Signup and view all the answers

    What is the final step in calculating volume?

    <p>Check sensibility</p> Signup and view all the answers

    How do you calculate the volume of a composite shape?

    <p>Calculate the volume of each part separately and sum them up</p> Signup and view all the answers

    What is the relevance of volume in determining the cost of a material?

    <p>It determines the price per unit volume</p> Signup and view all the answers

    Why is volume an important concept in real-world applications?

    <p>It helps in determining the capacity of containers</p> Signup and view all the answers

    What is the primary purpose of calculating the volume of a container?

    <p>To determine how much it can hold</p> Signup and view all the answers

    When calculating the volume of a composite shape, what should you do?

    <p>Break the shape down into simpler shapes and calculate their volumes separately</p> Signup and view all the answers

    What should you ensure when taking measurements for volume calculations?

    <p>That all measurements are in the same units</p> Signup and view all the answers

    What is the result of multiplying the volume of a material by its price per cubic meter?

    <p>The cost of the material</p> Signup and view all the answers

    What should you do after calculating the volume of an object?

    <p>Verify the calculation to ensure it makes sense</p> Signup and view all the answers

    Why is it crucial to identify the shape of an object before calculating its volume?

    <p>To decide which formula to use</p> Signup and view all the answers

    What is the formula used to calculate the volume of a rectangular box?

    <p>length × breadth × height</p> Signup and view all the answers

    Why is volume an important concept in real-world applications?

    <p>It helps determine the capacity of containers and the amount of material needed</p> Signup and view all the answers

    What is the primary purpose of calculating the volume of a 3-dimensional object?

    <p>To measure the amount of space it occupies</p> Signup and view all the answers

    What step should you take when dealing with composite shapes?

    <p>Break them down into simpler shapes</p> Signup and view all the answers

    Why is it essential to ensure all measurements are in the same units before calculating volume?

    <p>To avoid errors in calculation</p> Signup and view all the answers

    What is the benefit of calculating the volume of a container?

    <p>To determine how much it can hold</p> Signup and view all the answers

    What should you do after applying the formula and performing the calculation?

    <p>Verify the calculated volume makes sense in the context of the problem</p> Signup and view all the answers

    What is a crucial aspect of using the formula for a cylinder?

    <p>Using the radius of the base</p> Signup and view all the answers

    What is the purpose of calculating the volume of a material?

    <p>To determine how much of it is needed</p> Signup and view all the answers

    What should you do when faced with multiple objects or composite shapes?

    <p>Calculate the volume of each part separately and then sum them up</p> Signup and view all the answers

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