There are two ways to construct a triangle using a ruler and a protractor. The first is a Side, Angle, Side (SAS) construction where two sides and the angle between them is known. The second is an ...
Koichi Konishi is seen in this image provided by Noriko Yamaguchi. The triangular protractor with Koichi Konishi's name carved into it is seen in the hands of his daughter, Noriko Yamaguchi, in Nara ...