Русско-английский научно-технический словарь
общая сторона
• The triangles KAH, KGH are equal because AH = HG, HK is common and the angles at H are right.
Русско-английский научно-технический словарь
• The triangles KAH, KGH are equal because AH = HG, HK is common and the angles at H are right.