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Answer variants:
25.997
15
10.997
A boy observes a dog, at an angle of 30\(^{\circ}\) from the top of the building, 15 \(m\) above the ground. The dog runs towards the building from a distance, and its angle from the top of the building is \(45^{\circ}\). Find the distance the dog has moved. (Use \(tan \ 30^{\circ} = 0.577\))
 
Answer:
 
The dog moved about a distance of
 \(m\).