Question

The area of a square field is 1.2 hectare find the length of its diagonal in metres

Answer 1

1 hectare = 10000m²
1.2 hec. = 12000m²
area of square= a² = 12000
a= 20√30
diagonal = a√2 = 20√30 × √2 = 40 √15 = 154.91m

Answer 2

Step-by-step explanation:

Adding 8 to 7 results in a sum of digits of 6, and so on down to adding 8 to 1 which gives 9.

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Number Repeating Cycle of Sum of Digits of Multiples

10 {1,2,3,4,5,6,7,8,9}

11 {2,4,6,8,1,3,5,7,9}

12 {3,6,9,3,6,9,3,6,9}

13 {4,8,3,7,2,6,1,5,9}