Question

If the diagonal of a square √8 meter ,then its area​

Answer 1

Answer:

$let \: \: \: the \: \: \: side \: \: be \: \: \: y \\ if \: \: diagonal = \sqrt{8} m \\ then \: \: \: side {}^{2} + side {}^{2} = diagonal {}^{2} \\ y {}^{2} + y {}^{2} = 8 \\ 2y {}^{2} = 8 \\ y {}^{2} = 4 \\ area \: \: \: of \: \: \: square = side \times side = y \times y = y {}^{2} = 4m {}^{2} \: \: \: \: \: \: \: ans.$

Hope it will hlep you.