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Standard X
Mathematics
Question
The length of AB is 81.96 cm.
If true then enter
1
and if false then enter
0
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Solution
Verified by Toppr
∠
B
D
E
=
60
∘
,
∠
E
D
A
=
45
∘
B
C
=
D
E
=
30
Now, In
△
B
D
E
tan
60
=
P
B
=
B
E
D
E
B
E
=
D
E
√
3
B
E
=
30
√
3
Now, In
△
A
D
E
tan
45
=
P
B
=
A
E
D
E
A
E
=
D
E
=
30
Thus,
A
B
=
A
E
+
B
E
A
B
=
30
+
30
√
3
A
B
=
81.96
cm
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