Page 62 - Math Grade 12 (Basic)

PROEUS DARA

P(8.5) = 8.5- 5- 8.5) X 8.5

= 16900 m2~:~rn '1

~tm:~ g &~'Bj2JLfi't3tfi sth ru1 f]tnS m
I
~~UHflB~s 16900 ms rn Lf1'Btfi2L6l~ rnfi
1 u

0 q 0 ~ t:::l, t:::Jc::,p
fiJfJTififf! 2: 'i6ltfilrui'Bti5'i:fl2'liftfl'i6ll:tu2h
Ill lJ IJ lJ '"*
I
~~niUihrJH9]61 t~'t3j2J~~LnijlmniL~tfilM~tl~6l Jtm~~~ctltrn2mrnrun P = 40m '1
I
orgm : mh ABC m~~:mru~t'i:lrn'tflsu1'i:flu; A

n:J1ti5BC= 3P , AB=x, AC=y, x>O, y>O
X y
3P
tl'\Ql2 x + y + = 2P ( l)
4
3P 5P-4x
y=2p- x=-- B~------------~ c
3P/4
o:;;:: o:;;:: SP
ttllru 5P-4x>O 2"1'\J4x<5P 2"1'\Jx<
4
4
ffl'B rn n 2 ru1 ~ < x <
9 g

S(x) =

=

p
S'(x) = x --;:======
4
5
S'(x) = 0 hl'B~rn -8x+5p = 0 ii2J x = [

5
dstu x = P nb (l) tl'\QlS +y+ =
IJ 8 "' I
3
"
"
""'
0
0
~msg Uitfilru! ABC 'i:fl21:~LntJlti'U~6l ~gLffl&&l BC = , AB = AC = ~~
5x40
l:'li P = 40m I:Slo BC = 3x40 = 30m , AB = AC = - - = 25m '1
""'
0
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