From a point on the ground 300 feet from the base of a factory the angle of elevation of the top of the factory is 38 degrees and the angle of elevation of the top of the smokestack is 52 degrees. Find the height of the smokestack to the nearest foot .

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?