- side, cir****radius R , {\displaystyle R,}
inradius r , {\displaystyle r,}
exradii r a , r b , r c {\displaystyle r_{a},r_{b},r_{c}}
tangent to a , b , c...
- An
acute triangle (or acute-angled triangle) is a
triangle with
three acute angles (less than 90°). An
obtuse triangle (or obtuse-angled triangle) is a...
- {C}=&1&:&1&:&-1\end{array}}} The
radii of the
excircles are
called the
exradii. The
exradius of the
excircle opposite A {\displaystyle A} (so touching...
- the
distance from an
arbitrary point to
another point, the inradius, the
exradii, the cir****radius, and/or
other quantities.
Unless otherwise specified...
-
parametrizations given above at #Heronian
triangles with
integer inradius and
exradii.: Thm. 5 An
automedian triangle is one
whose medians are in the same proportions...
-
Heronian triangle, the
three altitudes, the cir****radius, the
inradius and
exradii, and the
sines and
cosines of the
three angles are also all
rational numbers...
- {1}{h_{2}}}+{\frac {1}{h_{4}}}.}
Another similar characterization concerns the
exradii ra, rb, rc, and rd in the same four
triangles (the four
excircles are each...
- {\textstyle A=abcd} and an
inradius r = a b c / d {\textstyle r=abc/d} . The
exradii will be: r x = b c d / a , r y = a c d / b , r z = a b d / c . {\displaystyle...
