IGCSEMathsCambridge (CIE)International MathsExtendedFlashcardsLengths, Areas & VolumesArea & Perimeter

Area & Perimeter (Cambridge (CIE) IGCSE International Maths: Extended): Flashcards

Exam code: 0607

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  • FrontPerimeter

    True or False?

    To find the perimeter of a regular 2D shape you multiply the number of sides by the length of one side.

Cards in this collection (11)

  • True or False?

    To find the perimeter of a regular 2D shape you multiply the number of sides by the length of one side.

    True.

    To find the perimeter of a regular 2D shape you multiply the number of sides by the length of one side.

  • True or False?

    In a compound shape made up of two rectangles, the length of the two shorter sides opposite a longer side will add up to the same length as the longer side.

    True.

    In a compound shape made up of two rectangles, the length of the two shorter sides opposite a longer side will add up to the same length as the longer side.

    A right-angled L-shape with the left vertical side measuring 8 cm. The top part of the 'L' has a length of 5 cm and the bottom part 3 cm, adding up to the same total as the left vertical side.

  • What does a 'dash' on two or more sides of a shape in a diagram indicate?

    All sides in a diagram that are annotated with a dash are of equal length.

    E.g. A rectangle has two pairs of opposite sides of equal length.

    A rectangle. Top and bottom edges have a single dash indicating equal length, and left and right sides have a double dash indicating equal length.

  • What is the term used to describe the perimeter of a circle?

    The circumference of a circle is its perimeter.

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

    The formula for the area of a triangle is A equals 1 half b h

    Where:

    • A equalsarea

    • b equalsbase

    • h equalsperpendicular height

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

    The formula for the area of a rectangle is A equals l w

    Where:

    • A equalsarea

    • l equalslength

    • w equalswidth

  • What is the formula for the area of a parallelogram?

    The formula for the area of a parallelogram is A equals b h

    Where:

    • A equalsarea

    • b equalsbase

    • h equalsperpendicular height

  • What is the formula for the area of a trapezium?

    The formula for the area of a trapezium is A equals 1 half open parentheses a plus b close parentheses h

    Where:

    • A equalsarea

    • a and b are the lengths of the two parallel sides

    • h equalsperpendicular height

  • True or False?

    The formula for the area of a circle is A equals 2 pi r.

    False.

    The formula for the area of a circle is A equals pi r squared

    Where:

    • A equalsarea

    • r equalsradius

  • How do you find the area of a compound shape?

    First split the shape into a combination of standard shapes.

    Find the area of each of the standard shapes and add them together.

  • True or False?

    The area of a compound shape can only be found by adding areas.

    False.

    You may usually find the area of a compound shape by adding areas but sometimes it may be easier to find the area of a larger shape and subtract the area of another shape from it to find the area of the compound shape.

    The area of a compound shape can be found by subtracting the area of a triangle from the area of a rectangle.
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