Areas: Polygons and Circles Test


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http://canalsideconferencecentre.co.uk/https:/canalsideconferencecentre.co.uk/wp-content/themes/yootheme/css/theme.1.css?ver=1608299721 Answer the following questions:

http://frescohealth.com/beet-smoothie/ Use = 3.14

  1. Referring to the above figure, where the larger circle a has a radius of 6 cm and circle B has a radius of 2 cm, find the area of the shaded portion: (click for answer)

    Area of circle A = r2
    Area of circle A = 3.14 (62)
    Area of circle A = 3.14 x 36
    Area of circle A = 113.04 cm2

    Area of circle B = r2
    Area of circle B = 3.14 (22)
    Area of circle B = 3.14 x 4
    Area of circle B = 12.56 cm2

    Therefore,
    Area of the shaded region = Area of Circle A – area of Circle B
    Area of the shaded region = 113.04 cm2 – 12.56 cm2
    Area of the shaded region = 100.48 cm2

  2. What is the area of a square with one side 4 cm? (click for answer)

  3. What is the area of a rectangle with length 6 cm and height 8 cm? (click for answer)

  4. What is the area of a parallelogram with length 6 cm and height 2 cm? (click for answer)

  5. What is the area of a circle with diameter 6 cm? (click for answer)