1. Line A is a tangent
Region B is a segment
Region C is a sector
Line D is a chord
Line E is a radius
2. Circumference = 75.4 cm
3. Circumference = 77.9 mm
4. a. Circumference = 32.0 cm, area = 81.7 cm2
b. Circumference = 35.8 cm, area = 102 cm2
c. Circumference = 10.3 m, area = 8.50 cm2
5. a. Perimeter = 16.1 cm, area = 15.9 cm2
b. Perimeter = 41.1 cm, area = 100 cm2
c. Perimeter = 61.9 cm, area = 192 cm2
6. Radius = 0.621 cm
7. Diameter = 26.4 m
8. Radius = 3.33 mm
9. Circumference = 266.9 cm
10. Distance of race is 12052 metres.
