🔍 Tìm kiếm từ vựng
nonagon
Noun
hình chín cạnh, cửu giác
(geometry) a flat shape consisting of nine straight sides and nine angles
decagon
Noun
thập giác, đa giác mười cạnh
(geometry) a flat polygon with ten straight sides and ten angles
"The children were challenged to draw a perfect decagon during their geometry class ."
hendecagon
Noun
hình mười một cạnh, hendecagon
(geometry) a flat figure consisting of eleven straight sides and eleven angles
dodecagon
Noun
hình mười hai cạnh, hình có mười hai góc
(geometry) a flat figure that consists of twelve sides and twelve angles
tridecagon
Noun
hình mười ba cạnh, đa giác mười ba cạnh
a polygon with thirteen sides and thirteen angles
ago
Preposition
trước, cách đây
used to show how far back in the past something happened
"They got married ten years ago."
ago
Adverb
trước đây, đã qua
used to refer to a time in the past, showing how much time has passed before the present moment
"He left the office just a few minutes ago."