Gr 12 Math Lit: Ch 4.2 Perimeter and Area
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Questions and Answers

What is the unit of measurement for the perimeter of a shape?

  • Cubic units (e.g., cm³, m³)
  • Square units (e.g., cm², m²)
  • Ratio of length to width
  • Linear units (e.g., mm, cm, m, km) (correct)

    • How do you estimate the perimeter of a circle?

  • Using a ruler to measure the diameter
  • Using a piece of string to measure the circumference (correct)
  • Counting the number of sides of the circle
  • Calculating the area of the circle and then finding the perimeter

    • What is the formula for the perimeter of a rectangle?

  • 2 × length + width
  • 2 × length + 2 × width (correct)
  • length × width
  • length + 2 × width

    • What is the importance of understanding perimeter in real-life applications?

    <p>To determine the amount of material needed for a project</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>1/2 × base × height</p> Signup and view all the answers

    What is the unit of measurement for the area of a shape?

    <p>Square units (e.g., cm², m²)</p> Signup and view all the answers

    How do you calculate the area of a rectangle?

    <p>Multiply length by width</p> Signup and view all the answers

    What is the formula for the area of a circle?

    <p>π × radius²</p> Signup and view all the answers

    What is the perimeter of a square with a side length of 5cm?

    <p>20cm</p> Signup and view all the answers

    What is the area of a triangle with a base of 6cm and a perpendicular height of 8cm?

    <p>24cm²</p> Signup and view all the answers

    What is the circumference of a circle with a diameter of 14cm?

    <p>44cm</p> Signup and view all the answers

    What is the area of a rectangle with a length of 8cm and a width of 5cm?

    <p>35cm²</p> Signup and view all the answers

    What is the perimeter of a triangle with sides of 5cm, 6cm, and 7cm?

    <p>18cm</p> Signup and view all the answers

    What is the area of a circle with a radius of 4cm?

    <p>50.24cm²</p> Signup and view all the answers

    What is the perimeter of a rectangle with a length of 10cm and a width of 6cm?

    <p>32cm</p> Signup and view all the answers

    What is the area of a square with a side length of 8cm?

    <p>64cm²</p> Signup and view all the answers

    What is the primary method for measuring the perimeter of a triangle?

    <p>Measuring the length of each side using a ruler</p> Signup and view all the answers

    What is the formula for the perimeter of a rectangle, if the length and width are equal?

    <p>Perimeter = 4 × length</p> Signup and view all the answers

    What is the unit of measurement for the area of a circle?

    <p>cm²</p> Signup and view all the answers

    What is the formula for the perimeter of a shape with five sides?

    <p>Perimeter = side 1 + side 2 + side 3 + side 4 + side 5</p> Signup and view all the answers

    What is the purpose of using a piece of string to measure the perimeter of a circle?

    <p>To estimate the circumference of the circle</p> Signup and view all the answers

    What is the formula for the area of a rectangle with a length of 8cm and a width of 5cm?

    <p>Area = 8 × 5</p> Signup and view all the answers

    What is the formula for the perimeter of a shape with a continuous curved boundary?

    <p>Perimeter = π × diameter</p> Signup and view all the answers

    What is the formula for the area of a square with a side length of 8cm?

    <p>Area = 8 × 8</p> Signup and view all the answers

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