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Isosceles (equilateral) triangle online calculator

side a side b
angle A angle B
area：
perimeter：
circumradius：
Inscribed circle radius：
The height of side A：
The height of side B：
A corner bisector：
B corner bisector：
a side centerline：
b side centerline：

area(K) K2 = b2 * (4 × a2 - b2) / 16
perimeter 2 × a + b
The bisector of angle b ( tb ) tb2 = 4 × a2 - b2 / 2
The bisector of angle a( tb ) ta2 = b2 × a × (2a + b) / (a + b)2
Median line of edge a ( ma ) ma2 = (2 * b2 + a2) / 4
Median line of edge b ( mb ) mb2 = (4 * a2 - b2) / 4
circumradius a / ( 2 * sin (A)) or b / ( 2 * sin (B))
Inscribed circle radius (r) r2 = b2 × (2a - b) / (4 × (2a + b))