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Yel <br /> �o71 <br /> ---,- - <br /> 4 <br /> so <br /> �u� - Z 96a._ K q B <br /> iC <br /> _ r <br /> :3 <br /> y 7 o .3 3 riantligt <br /> ��� _ r <br /> > r t <br /> a <br /> -"_�- For ar <br /> cot ,cosec e• <br /> cat B;a s 47 '.,;a as <br /> 3,3 oorB,b a%/ a s e ms <br /> i / i•j $® A,b a a cotA,a- d. <br /> (, ••y 9 em <br /> +P-A,a = b tan A,o- <br /> d,— <br /> b <br /> -7 <br /> ) cos <br /> _ 074,—;;, 7 B=90°-A,a=a sin A,b=o cos A, <br /> $olutioss of Oblique Triangles <br /> �as WoB C= 180'-(A+B),e= gliaO <br /> 3 jk sin'A ' sin A <br /> i F b tin A a sin C <br /> ,33 - C sin B= ,C= 180°-(A+B),o <br /> a = <br /> sin A <br /> G0 � ��: � •= (d-.b)tan�(A-}-B) <br /> 3 ,a A+B=180°-C,tan�(A-B)= a+ b <br /> ja 2 6 asin C <br /> 7 <br /> F J v- a T sin A <br /> y z` 9 3 y f ' a�4- b+ <br /> C =_I <br /> 2 eia A- i8- 8-a <br /> r ba ' <br /> ___ <br /> 9 3 3 7 sin;B=V ,C=180°-4A+B) <br /> c: a+b+a 1 <br /> 2 , area = 8(8-a) e- 8-0 <br /> ba sin A• 1 <br /> a2 ri®B ain <br /> area: _ - <br /> 2AnA •� <br /> DUCTION TO HORIZONTAL s <br /> Horizontal distance=Slope distance mn1 GAY tplr <br /> �ne of the verticatangle.Thus:alopedistiF819.4 tt <br /> gKMf t V ,sugls=6°W. From Table,Pace IX.mos 6°10+s <br /> - ntal distance=8;9.4X.9869=918.09 ft <br /> q a { y Horizon distance also=Slope distance minus slope <br /> ' " diatsaoe times(1=cosiue of vertical angle). With the <br /> of as the preceding example,the follow- <br /> `_y 1 1 y inngg result j6 otitniaad.Cosine 6'101=.9969.1-.886Y=.0041. <br /> 4X.OGl1=1.31.1194-1.51=318.09 ft <br /> horizontal diatom approximately:-the slope dist- <br /> 'A vided by twiob the`aiop4, tftnce. TUus:rise=l4 ft, <br /> 502J9 it. <br /> tx <br /> - /, .•. MADE IN U.a,16 <br /> ,. . <br /> V <br /> 0 <br />