Trigonometric ratio e.g. sine, reconstituting device, has arms comprising protractor at their junction, where protractor is graduated from zero to ninety degrees and permits measurement of opening of angle formed by arms

摘要

#CMT# #/CMT# The device has three arms graduated in centimeter and millimeter and articulated between them through a joint (3) with reduced thickness, where the arms comprise protractor at their junction. The protractor is graduated from 0 to 90 degrees and permits measurement of opening of an angle formed by the arms. The arms are formed of single block and connected by an axle. The dimension of each arm is 20 centimeter. The arms and the protractor are connected by parts (A). Notches (2) are provided at a central part of the device. #CMT#USE : #/CMT# Device for reconstituting trigonometric ratio such as sine, cosine, tangent, secant, cosecant or cotangent. #CMT#ADVANTAGE : #/CMT# The configuration of the device permits direct reading of the trigonometric ratio on the arms by graduating opposite and adjacent sides based on hypotenuse. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a front view of a trigonometric ratio reconstituting device. A : Parts 1 : Width 2 : Notches 3 : Joint.