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Topic: Three half-circles
Replies: 4   Last Post: Sep 6, 2011 8:51 PM

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Avni Pllana

Posts: 546
Registered: 12/6/04
Three half-circles
Posted: Sep 3, 2011 11:37 AM
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Let DEF be a rectangular triangle such that D=[0 0 0], E=[3 0 0] and F=[0 4 0]. On the sides DE, DF and EF are constructed respective half-circles with positive z-axis and perpendicular to the xy-plane. Determine the parameters A, B, C of the plane A*x + B*y + C*z = 1 , that tangents the three half-circles.

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