Page 165 - Grade 10 C.Math

(3) PCB = BAD [ tYo 1 / 2 af6 ]

(4) CBP = BAD [ yfxf lbOPsf] af6 ]

(5) PCB = CBP [tYo 3 / 4 af6 ]

(6) PB = CP [ tYo 5 af6 PBC sf cfwf/sf sf]0fx¿ a/fa/ ePsfn] ]
Curriculum Development Centre

cEof; 15.1
A
1. (a) ;Fu}sf lrqdf O j[Ttsf] s]Gb|laGb' xf] .
OBA = 25° / OCA = 30 ° eP BOC
sf] dfg kTtf nufpg'xf];\ .
25°
O 30°
B
C

P
(b) ;Fu}sf lrqdf O j[Ttsf] s]Gb|laGb' xf] .

olb PQR = 40° / PSQ = x° eP x° sf]
dfg kTtf nufpg'xf];\ . Q 40°
O R
x°

S
(c) lbOPsf] lrqdf, O j[Ttsf] s]Gb| laGb' xf] . F
FAEC Pp6f rj|mLo rt'e'{h xf], olb
CED = 68° 5 eg] (i) AFC (ii) a[xt sf]0f O
AOC sf] dfg kTtf nufpg'xf];\ . C

68°
A E D

D
(d) lbOPsf] lrqdf AOB j[Ttsf] Jof; xf] .
100° C
olb ADC = 100° eP BAC sf] dfg
kTtf nufpg'xf];\ . A B
O

162 ul0ft, sIff – 10