Related topics: Maths, Measurement
ˈset square noun [countableC] British EnglishBrE
HMTMa flat piece of plastic or metal with three sides and one angle of 90°, used for drawing or testing angles 〔绘图和测量直角用的〕三角板 SYN American English triangle →4 See picture of 见图 MATHEMATICS →5 see picture at 见图 mathematics