Question

Prove the following:(a+b+c)^2=a^2+b^2+c^2+2(ab+bc+ca)Class IX​

Answer 1

Step-by-step explanation:

Mr. Dinesh owns an agricultural farm at

village Talvel. The length of the farm is 10

meter more than twice the breadth. In

order to harvest rain water, he dug a

square shaped pond inside the farm. The

side of pond is 1/3 of the breadth of the

farm. The area of the farm is 20 times the

area of the pond. Find the length and

breadth of the farm and side of the pond.