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Are the diagonals of a trapezoid ever perpendicular? |
2007-09-23 |
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Amanda pose la question :
Are the diagonals of a trapezoid ever perpendicular?
Harley Weston lui répond. |
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Are all rectangles trapezoids? |
2007-01-05 |
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Sarah pose la question :
Are all rectangles trapezoids?
Chris Fisher lui répond. |
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The diagonals of a trapezoid |
2005-11-11 |
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Chris pose la question :
Is there ever a case where the diagonals of a trapezoid bisect each other?
Walter Whiteley lui répond. |
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Two calculus problems |
1999-12-13 |
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Alan pose la question :
I have 2 questions that are very new to me, they were included on a quiz and the material was never covered. Our teacher never explained the purpose and detailed explanation of how to solve the problem. Could you help? Thanks. Question 1:
A ball is falling 30 feet from a light that is 50 feet high. After 1 sec. How fast is the shadow of the ball moving towards the light post. Note that a ball moves according to the formula S=16t^2 Question 2:
How many trapezoids must one use in order for the error to be less than 10^-8 if we want to find the area under the curve Y=1/X from 1 to 2. Find the exact area, Graph the function and use the trap rule for the "N" that you found.
Harley Weston lui répond.
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Two Inscribed Trapezoids |
1998-01-27 |
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James pose la question :
A hexagon inscribed in a circle has three consecutive sides each of length 3 and three consecutive sides each of length 5. The chord of the circle that divides the hexagon into two trapezoids, one with three sides each of length 3 and the other with three sides each of length 5, has length equal to m/n, where m and n are relatively prime positive integers. Find m+n.
Haragauri Gupta lui répond. |
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