Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 25
Fig. 37. An isosceles triangle is that which has two sidesequal as in Fig. 38. A scalene triangle is that which has three un-equal sides as in Fig. 39. 22 MECHANICAL DRAWING A right angled triangle is that which has aright angle as in Fig. 40. An obtuse-angled triangle is that which has anobtuse… … The hypothenuse in a right angled triangle isthe side opposite the right angle as in Fig. 40. A square is that which has all its sides equaland all its angles right-angled as in Fig. 41. A rectangle is that which has all its angles Fig. 41. Fig. 42. right angles, but only its opposite sides equal…
Mechanical drawing · Machine design
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