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

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

3.   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

4.  (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