Quizzer On-Line ~ Formulas for Area

We've used this symbol - ¶ - to represent Pi
1.What is the formula for the area of a square?
A=¶R² A=½BH  A=S²
2. What is the formula for the area of a parallelogram?
A=LW A=¶R² A=BH
3. What is the formula for the area of a rhombus?
A=½D1D2 A=BH A= ½H(x+y)
4. What is the formula for the area of a rectangle?
 A=BH A=S² A=LW
5. What is the formula for the area of a circle?
A=LW A=¶R² A= ½H(x+y)
6. What is the formula for the area of a trapezium?
A= ½H(x+y) A=BH A=½D1D2
7. What is the formula for the area of a triangle when three sides are known?
A=½BH A=LW A=the square root of [s(s-a)(s-b)(s-c)] 
8. What is the formula for determining "s"?
s=(a+b+c)/2 s=A÷2 s=½H(x+y)
9. What is another formula for the area of a circle?
A=½D1D2 A=¼¶D²  A=LW
10. What is the formula for an annulus or ring?
A=¶(R-r)(R+r) A=¼¶D² A=¶R² 

Score = 
Correct answers:
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This quiz uses a modified javascript script that was originally written by Charity Kahn for the Builder.Com section of c|net. (http://www.builder.com/Programming/Kahn) Modifications by Fred Oldfield