Gr 10 Math Ch 10: Area of a Polygon
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Questions and Answers

What is the formula for calculating the area of a triangle?

  • A = πr²
  • A = b × h
  • A = ½ × b × h (correct)
  • A = s²

    • Which shape shares the same area formula as a rectangle?

  • Square (correct)
  • Triangle
  • Circle
  • Trapezium

    • What is the correct formula for the area of a circle?

  • A = πr
  • A = r²
  • A = πr² (correct)
  • A = 2πr

    • Which of the following shapes does NOT use height in its area formula?

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

    What is the area formula for a trapezium?

    <p>A = ½ × (a + b) × h</p> Signup and view all the answers

    Which formula correctly calculates the area of a parallelogram where the base is 5 units and the height is 3 units?

    <p>15 square units</p> Signup and view all the answers

    If the base of a triangle is doubled while the height remains unchanged, how does this affect the area of the triangle?

    <p>The area doubles</p> Signup and view all the answers

    What is the area of a circle with a radius of 4 units, expressed in terms of π?

    <p>16π square units</p> Signup and view all the answers

    In which scenario would the area of a trapezium be maximized?

    <p>When both bases are equal</p> Signup and view all the answers

    What is the area of a rectangle with a base of 10 units and a height of 0 units?

    <p>0 square units</p> Signup and view all the answers

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