Page 162 - Grade 10 C.Math

k|df0f
tYox¿ sf/0fx¿

AOC df 1. cw{Jof; AO = OC ePsfn] cfwf/sf
1. OAC = OCA a/fa/ sf]0fx¿
2. OAC + OCA = AOD 2. lqe'hsf] Pp6f e'hfnfO{ nDAofpFbf aGg]
Curriculum Development Centre
cyjf 2OCA = AOD
afx\o sf]0f leqL cgf;Gg sf]0fx¿sf]
of]ukmn;Fu a/fa/ x'g] ePsfn]
3. BOC df 3. tYo (1) / (2) h:t}
2 BCO = BOD

4. 2(OCA+BCO) = AOD + BOD 4. tYo (2) / (3) sf] of]ukmn lnFbf
cyjf 2ACB = AOB

;fWo 2. Pp6} j[Ttv08df ag]sf kl/lwsf sf]0fx¿ a/fa/ x'G5g\ .
yfxf lbOPsf] M lrqdf O j[Ttsf] s]Gb| xf] . APB / AQB Pp6} P Q
j[Ttv08 AB df ag]sf] sf]0fx¿ x'g\ .

k|dfl0ft ug'{kg]{ M APB = AQB O

/rgf M AO / BO hf]8f}F .

k|df0f A B

tYox¿ sf/0fx¿
1. 2APB = AOB 1. Pp6} j[Ttv08df ag]sf kl/lw sf]0f / s]Gb|Lo sf]0fsf]
2. 2AQB = AOB ;DaGw ePsfn] .
3. 2APB = 2AQB cyjf 2. tYo (1) h:t}
APB = AQB
3. tYo (1) / (2) af6

k|dfl0ft eof] .
;fWo 3. cw{j[Ttdf aGg] kl/lw sf]0f Ps ;dsf]0f x'G5 .

yfxf lbOPsf] M lrqdf ABC Pp6f cw{j[Tt xf] . B
h;df O cw{j[Ttsf] s]Gb| / ABC kl/lwdf ag]sf] sf]0f xf] .
A C
k|dfl0ft ug'{kg]{ M ABC = 90° O

/rgf M cw{ j[TtnfO{ laGb' D af6 k"0f{ j[Tt agfcf}F .
D

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