CBSE Class 10 Maths (Standard) 2016 · Paper 30/1/1 · Question 2

Some Applications of Trigonometry 1 mark Medium

In Fig. 1,

A B

is a

6

m high pole and

C D

is a ladder inclined at an angle of

6 0^{\circ}

to the horizontal and reaches up to a point

D

of pole. If

A D = 2.54

m, find the length of the ladder. (use

3 = 1.73

)

Fig. 1: Pole AB with ladder CD at 60 degrees reaching point D.

Answer

The length of the ladder

C D = 4

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