Page 175 - Grade 10 C.Math

k]ml/ PRS sf] If]qkmn = PQR sf] If]qkmn
cyjf, PS. RS. Sin 30° = x 144 cm 2

cyjf, 18. RS. = 36 cm

cyjf, 9 RS = 36 cm
Curriculum Development Centre
RS = = 4 cm

cEof; 16.1

1. tnsf lqe'hx¿sf] If]qkmn kTtf nufpg'xf];\ M

(a) X (b) P

60°

Z R
45°
Y
Q
C A
(c) (d)
5x
35°

100°
B 6x 4x
B C
A

2. lgDg lnlvt k|Zgx¿df yfxf gePsf] dfg kTtf nufpg'xf];\ M

(a) b = 2.7 cm c = 4cm A = 90° ABC sf] If]qkmn = ?

(b) a = 7.1 cm b= 3.5 cm C = 30° ABC sf] If]qkmn = ?

(c) XY = 5 m Y = 30° XYZ sf] If]qkmn = 21 m YZ = ?
2
(d) PQR sf] If]qkmn = 1047.89 cm QR = 44 cm PQ = 55 cm Q = ?
2
]
]
(e) B = 110° C = 25° AB = 10 cm ABC sf Ifqkmn = 100 cm AC = ?
2
172 ul0ft, sIff – 10