Answer :
You may use a calculator to get its decimal value: 28.6356. Or you can simplify it by finding numbers that are factors of 820 that are squares ... 4 x 205 = 820 and so
√820 = √4 x √205 = 2√205
Till then -ayeitswesley
√820 = √4 x √205 = 2√205
Till then -ayeitswesley