18. नीचे की आकृति में x का मान होगा-
to c
5x
4x
B
A
(a) 10°
(b) 20°
(d)40°
उत्तर-(b)
10300
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Answered by
1
Answer:
(d) 20°
5x+4x = 180
9x = 180
x = 20°
Answered by
0
5x+4x=180
9x=180
X=180/9
X=20
Option b
9x=180
X=180/9
X=20
Option b
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