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A right triangle has legs of length 6 and 8 inches. CD bisects the right angle . Find the lengths of AD and DB.
Last edited by Prakash Panneer (2006-10-07 01:09:47)
Letter, number, arts and science
of living kinds, both are the eyes.
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Even though 5 and 5 seem like the right answers, they are not because
the hypotenuse is not perpendicular to the CD-bisector.
However, 10 = AD + DB.
I would use trig and a calculator, Prak.
arctan(6/8) and arctan(8/6), which add to 90 degrees.
two 45 degree angles.
Good luck.
igloo myrtilles fourmis
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Hi Franklin,
Can you give me the detailed answer?
Please...
Letter, number, arts and science
of living kinds, both are the eyes.
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I'll work on it...
You have all the angles of a triangle and know one of the sides and need a formula to get the other sides.
I'll google this and get back to you...
igloo myrtilles fourmis
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My possible answer: 4 2/7 and 5 5/7
igloo myrtilles fourmis
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Hi,
How did you get this?
Please give me the steps....
Letter, number, arts and science
of living kinds, both are the eyes.
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Learn about "law of sines" on internet.
Then the 3 sides of a triangle are just proportional to the sine of the opposite angles
across on the other side of the triangle.
http://img507.imageshack.us/img507/9343/prak4wy0.png
Image is a little poor sorry.
igloo myrtilles fourmis
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An interesting thing I just noticed after all that, was an
easier way to do it!!!!
4:3 ratio boosted from 7 to 10 is 40/7:30/7.
Pretty neat!!!!!!!!!!!!!!!!!!!!!!!!!!!
igloo myrtilles fourmis
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