Laserfiche WebLink
. •TRIGONOMETRIC PORMUL& <br /> B B <br /> t <br /> a <br /> tr..— b <br /> t Oblique <br /> L , 9olutiola 44 Right Triaeslaa,.;� * `� � � „'��'•' <br /> • ✓ 3 <br /> For Angle d;a da =c,cos= c ,tin= b ,cot= awe=+�.5 logo" <br /> 2 (liven Rsqnired a �. 077 <br /> a ` <br /> X y a,b , <br /> B,a tAa A. s a i - <br /> z. 3 So <br /> t 9G4 <br /> a <br /> B,b rind=a=cos B,b=V/ e a 0-4 a 1—ems <br /> " y t x Jk b;a B=90°-A,b =a cot A,a= ria d- <br /> (_J)r <br /> E!. B,a, o B-90-A,a= b ten A.,a= <br /> cos A. J 7 <br /> a, b B a 90*,A,o a o sin A,b,=a ew A. '1;» I <br /> ; 3o4utiori of 0&Uque_T ostrigles <br /> Z 6 G <br /> i L �•/ ' 'n v ldwuired a ejp 8 ' l a sin CC <br /> n8 � i � a� ,.e, o b = , a.. 1�p°=(a+B), a <br /> 3 2 g 3 5 a s ISS S I S <. sinsin A <br /> ',a. �' sin B= riar C— 180°'--(d t B).o a O <br /> a sal d <br /> t` ' 0 e f . p j- 3 p b,. © d;A a A+B=IiV—C,-tan}(A—B)— a—a tan b <br /> a sin C �B)� <br /> V a-I b <br /> Q m <br /> sin� <br /> r ` y o <br /> ,d a d, B,U +=a .sla JA= <br /> P <br /> r" <br /> sin}B= a ay �Cr 1806--(A+B) <br /> b, a A*& e— 2 � • � a s—a bt Lth <br /> / A• `P o d,b, c Area area <br /> = � � <br /> 'd,B,C,a Area uea ®a' B sin Cam A <br /> _..----�-" <br /> o J"� REDUCTION HORIZONTAL <br /> HorizonW —Move dist.uoamultipHed by the <br /> �S.Q(�• 0 /rl . �,o� aosineofthev o Thum siopedistsnce-W9.4 <br /> VAM HodZnbl0dirlafioe=E1 Psae IX. <br /> Q r tae l•�le Horizontal distance also=1Rope distance minus slop= <br /> distanse times'(1-cosbe of vertical a� With tfie <br /> same figures as in t2w preceding example, a follow- <br /> Q `R' inna resulk is obtained.Cosixe 50101—AM 1•— =•0611- <br /> .� Horizontal disWM i3nIMAOk1=1.81.818.h-1.81=818.00 ft- <br /> `A 1 ? Whsnthe rise is known,the borizes tal distance is approximately:—the slopedist- <br /> the square of the rise divided by twise the slope distance. Thus:rise=14 M. <br /> y distauoa-�Me ft. Horizontai distance=SQL""X 14_3e •"US_8A M ft. <br /> j A <br /> ' - <br /> J <br /> w <br />