Chapter 7
... mutual bending or inclination of the planes, which is to be measured with the help of the plane angles which comprise the solid angle. For the part by which the sum of all the plane angles forming a solid angle is less than the four right angles which form a plane, designates the exterior solid angl ...
... mutual bending or inclination of the planes, which is to be measured with the help of the plane angles which comprise the solid angle. For the part by which the sum of all the plane angles forming a solid angle is less than the four right angles which form a plane, designates the exterior solid angl ...
Part A - Centre for Innovation in Mathematics Teaching
... harmonics on stringed instruments. The theorem with which Pythagoras' name is associated was probably only proved later. Specific instances of it were certainly known to the Babylonians. The 'Harpedonaptai', Egyptian rope stretchers, are said to have used the 3, 4, 5 triangle to obtain right angles ...
... harmonics on stringed instruments. The theorem with which Pythagoras' name is associated was probably only proved later. Specific instances of it were certainly known to the Babylonians. The 'Harpedonaptai', Egyptian rope stretchers, are said to have used the 3, 4, 5 triangle to obtain right angles ...
