daisy32
daisy32
19-08-2016
Mathematics
contestada
What's the square root 20
Respuesta :
cutelion918
cutelion918
19-08-2016
by using calculator, these are the answers:
√20 = 4.47213595499958
√18 = 4.24264068711928
but without calculator,
√20 = √(4x5)
= √4 x √5
= 2 x √5
= 2√5
√18 = √(9x2)
= √9 x √2
= 3 x √2
= 3√2
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