Question

20. Find the length of the diagonal of a square whose area is 128 cm Also, find its perimeter.
21. The area of a square field is 8 hectares. How long would a man take to cross it digonally waking with speed of 4kmph?
22. The cost of harvesting a square field at 900 per hectare is 8100. Find
the cost of putting a fence around it at rupee18per meter. please answer step by step​

Answer 1

question 1.

1 part answer is 16cm and 45.24cm