The slant height of a conical mountain is 2.5 km and the area of its base is 1.54km2. The height of the mountain is:
The slant height of a conical mountain is 2.5 km and the area of its base is 1.54 km2. Find the height of the mountain.
At the foot of a mountain the elevation of its summit is 45∘, after ascending 1000 m towards the mountain up a stop of 30∘ inclination, the elevation is found to be 60∘. Find the height of the mountain :