Question

15. In a calender, mark a square of 9 numbers. a) The sum of all the nine numbers is 81. Write the numbers. b) Prove that the sum of all numbers is 9 times the middle number.?​

Answer 1

Answer:

Answer:

2,3,4,5,6

Step-by-step explanation:

2²+3²+4²+5²+6²                                                                                                                       ⇒4+9+16+25+36 = 90

Step-by-step explanation: