202page

^I ++g ++41 7) 4"il= 4++= 30-e HI+r, ErI #* t^j7| Eezjzlzl ?*rtl a| q 4zle- #zJ * =I}l j.EE oJ,tlE €:l+r+. 4+"ll €.^I ++g +q € + "J+ =q qq 1€4 ++€ ++"il +^]{E. aq. =.*t -uE Eg 4zl9 +d"il d^l g_e 40-s0 [cm) ,jg9 t"lE ^lzl+4. :le 3-8 E^l +E e7l LI.+H =g ZE H = .pl _H_E"tl zls €;,rI= {! €-4 +9 ++"tl "ilJ., Ezlrlel +41 "Ja6J4."lzig f9 ** 47lqa 6J4. [zH 3-9]"I^l G)g ++=9 *.olB,Jttl += z](scale).l4.Oq Eolts $C6l +€ol gol"I a|{, zlzl4J 4a il= a^}c.il *+q ca}9, €l+=e ?^}d4 sd6l "Jilg + il = +"14o| +tr}.@= @q *-olz} a4ag 4 @ol szl"lzl {r}E* "Ir+"} ts€- iol4. (b) (a) @E^l @zi fe 3-e +q =B @ +"* 2J7l = .4 .E,- E , ^tu E O aq ir-E -197 - (o+