A 20 m long ladder rests against a vertical wall. It makes an angle of 60° with the ground. Find the distance of the foot of the ladder from the wall.
A.10 m
B.17.32 m
C.34.64 m
D.30 m
A
This question tests the standard Trigonometry concept and its direct application to the stated values.
The given quantities are substituted into the standard formula or relation, and the expression is simplified step by step following BODMAS/identity rules.
Carrying out the calculation yields the required value: 10 m.
Hence, the correct answer is 10 m.
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