Terms for subject Mathematics containing perpendicular to the

English	Russian
a perpendicular bisector of a segment is a line, ray or another segment that is perpendicular to the segment at its midpoint	срединный перпендикуляр
an altitude of a triangle is a segment from a vertex and it is perpendicular to the opposite side of the vertex	высота треугольника
crack of shear perpendicular to the wood grain	трещина поперечного сдвига в дереве
tension perpendicular to the wood grain	растяжение попёрек волокон дерева
the lines are mutually perpendicular to one another	взаимно перпендикулярны
the perpendicular from center to a side of a regular polygon	апофема правильного многоугольника
the perpendicular from vertex to base of a right pyramid	апофема правильной пирамиды