Question

13. The volume of a 1-metre long circular iron rod is 3850 cm3. Find its diameter.
14. The lateral surface area of a 14-m high cylinder is 220 m2. Find the volume of the cylinder.
of a building at 2.50 per square metre if the diameter a​

Answer 1

Answer:

here you go hope helps☺✌

Answer 2

Answer:

Continuous plantation of crops in a field makes the soil poor in certain nutrients such as nitrogen, phosphorus, potassium, etc. ... When a farmer continues to grow' crops one after the other, then all nutrients available in the soil reduce and the crop yield decreases automatically.