Japanese

ある場所の中の角、または比較的端に近い一ヶ所 _(takkur)
― 我々のオフィスの一角に、プリンタがある; その大学の一角に、我々のオフィスがある

English

a certain point on the corner or relatively near the edge in a certain area _(takkur)
― there is a printer on the edge of our office; our office is on a certain area of the university

_{takkur (2018-02-13 10:06:13)}

(TK Feb 13, 2018) you may be able to say "not the centre" instead of "relatively near the edge" in the definition

_{takkur (2018-02-13 10:06:13)}

(TK Feb 13, 2018) singular only. you can't say "二角", "三角",...