Year 11 Mini-Assessment 12 FOUNDATION Perimeter, Area, Volume.

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Presentation transcript:

Year 11 Mini-Assessment 12 FOUNDATION Perimeter, Area, Volume

  correct units 12cm 12 + 12 + ? + ? = 36 24+ 2? = 36 ? ? 2? = 12 ? = 6 12cm Area = 12 x 6 = 72cm2  correct units

  any 1 correct  6cm B 3cm A C Length of side of square = 48 ÷ 4 = 12cm  Area of square = 12 x 12 = 144cm2 Area A = 6 x 12 ÷ 2 = 36cm2 any 1 correct Area B = 6 x 3 ÷ 2 = 9cm2 Area C = 9 x 12 ÷ 2 = 54cm2  Shaded area =144 – 36 – 9 – 54 = 45cm2

 (radius = 6.5)   Area of a trapezium = ½(a + b)h = ½(32 + 26)(11) = 319cm2  Area of a semi-circle = ½πr2 = ½π x 6.52 = ½π x 6.52 (radius = 6.5)  = 66.4cm2  Shaded area = 319 – 66.4 – 66.4 = 186.2cm2