What is the square root of245 correct to 2 places of decimal?

Answer 1

√245 ≈ 15.65

Calculate to 3 dp and round using the 3rd dp:

............ 1 . 5 . . 6 . 5 . 2 ⇒ √245 ≈ 15.65 to 2 dp.

...........-----------------

....... 1 | 2 45 . 00 00 00

............ 1

............ -

..... 25 | 1 45

............ 1 25

............ -----

... 306 | .. 20 . 00

............... 18 . 36

............... -------

. 3125 | .... 1 . 64 00

................. 1 . 56 25

................. ---------

31302 | ........... 7 75 00

........................ 6 26 04

........................ --------

........................ 1 48 96

Answer 2

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