Question

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Short Answer Type Questions-11
Q.1. An electric pole is 10 m high. A steel wire tied to
top of the pole is affixed at a point on the ground
to keep the pole up right. If the wire makes an
angles of 45° with the horizontal through the
foot of the pole, find the length of the wire (Use
2
= 1.414). [CBSE SA.-2 2016 HODM4OL)
AC​

Answer 1

Let AB=10= Height of Pole

and AD be the length of the wire

From △ABD

sin45

o

=

AD

AB

⇒

2

1

=

AD

10

⇒AD=10

2

⇒10×1.414 (Take

2

=1.414)

=14.14 m

Answer 2

Answer:

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