1. Circles – Non-Calculator
Year 11 Mini-Assessment 17
FOUNDATION
Circles – Non-Calculator

2.       Radius Diameter Chord Tangent Circumference =  x diameter
Radius = 4cm, so diameter = 8cm
Circumference =  x 8
= 8  

3.     Area of triangle ABC = ½ x 6 x 6 = 18cm2
Area of FULL circle =  x 62 = 36 cm2 
Area of QUARTER circle = 36  4 cm2 = 9 cm2
Shaded area = (9 – 18)cm2 

4.     Area of trapezium = ½ (20 + 12)(10) = 160cm2
Area of semi-circle = ½ x  x 32
= 4.5 cm2
Shaded area = 160 – 4.5 – 4.5
= (160 – 9) cm2  
-1 mark if no or incorrect units with
final answer