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Q:

A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30° with the ground. How high on the wall does the ladder reach?

  • 1
    10 m
  • 2
    17.32 m
  • 3
    34.64 m
  • 4
    30 m
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Answer : 1. "10 m"

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