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Standard XII
Mathematics
Question
Find angle 'x' if :
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Solution
Verified by Toppr
Let the triangle be ABC, where
∠
A
=
x
B
D
⊥
A
C
Now, In
△
B
D
C
tan
60
=
P
B
=
D
C
B
D
B
D
=
30
√
3
=
10
√
3
Now, In
△
A
B
D
sin
x
=
P
H
=
B
D
A
B
sin
x
=
10
√
3
20
sin
x
=
√
3
2
sin
x
=
sin
60
x
=
60
∘
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12
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