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
  • m²
  • km
  • cm³ (correct)

Which formula is used to calculate the volume of a cylinder?

  • Volume = length × breadth
  • Volume = Ï€ × radius × height
  • Volume = length × breadth × height
  • Volume = Ï€ × 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 (D)</p> Signup and view all the answers

What is the final step in calculating volume?

<p>Check sensibility (A)</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 (C)</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 (C)</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 (C)</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 (D)</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 (B)</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 (C)</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 (D)</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 (B)</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 (A)</p> Signup and view all the answers

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

<p>length × breadth × height (C)</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 (B)</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 (A)</p> Signup and view all the answers

What step should you take when dealing with composite shapes?

<p>Break them down into simpler shapes (D)</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 (B)</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 (B)</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 (D)</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 (B)</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 (B)</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 (A)</p> Signup and view all the answers

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