Tangential Triangle
The Triangle 
formed by the lines tangent to the Circumcircle of a given Triangle
at its Vertices. It is the Pedal Triangle of withthe Circumcenter as the Pedal Point. The Trilinear Coordinates of the Vertices of the tangential triangle are
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The Contact Triangle and tangential triangle are perspective from the Gergonne Point.See also Circumcircle, Contact Triangle, Gergonne Point, Pedal Triangle,Perspective
- Least Upper Bound
- Lebesgue Constants (Fourier Series)
- Lebesgue Constants (Lagrange Interpolation)
- Lebesgue Covering Dimension
- Lebesgue Dimension
- Lebesgue Integrable
- Lebesgue Integral
- Lebesgue Measurability Problem
- Lebesgue Measure
- Lebesgue Minimal Problem
- Lebesgue-Radon Integral
- Lebesgue Singular Integrals
- Lebesgue-Stieltjes Integral
- Lebesgue Sum
- Le Cam's Identity
- Leech Lattice
- Lefshetz Fixed Point Formula
- Lefshetz's Theorem
- Lefshetz Trace Formula
- Leg
- Legendre Addition Theorem
- Legendre Differential Equation
- Legendre Duplication Formula
- Legendre Function of the First Kind
- Legendre Function of the Second Kind