Appendix C

Score 4 points for each correct answer. For an assessment of your total, read the part before the start of the test.

Use the following if you need to (some are approximations): sin 30° = cos 60° = 0.5, sin 45° = cos 45° = 0.707, sin 60° = cos 30° = 0.866, π = 3.141, √2 = 1.414, √3 = 1.732.

The first seven questions refer to Figure C.1(a).

Figure C.1:

- What is the equation of the circle?
Answer: Generally, the equation of a circle on the xy-plane centered at (a, b) and of radius r is

${(x-a)}^{2}+{(y-b)}^{2}={r}^{2}$

So the ...

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