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larisa86 [58]
2 years ago
6

MATHEMATICS if the diagonal of a square is 12cm, calculate the area and the perimeter of the square. 72cm​

Mathematics
1 answer:
nata0808 [166]2 years ago
6 0

Answer:

diagonal \: of \: square = a \sqrt{2}  \\ 12 = a \sqrt{2}  \\  \frac{12}{ \sqrt{2} }  = a \\  \: a = 6 \sqrt{2}  \\ now \: area \: of \: square =  {l}^{2}  \\  = (6  \sqrt{2) {}^{2} }  \\  = 72cm {}^{2}  \\ again \: perimeter \: of \: square  = 4l \\  = 4 \times (6 \sqrt{2} ) \\  = 33.94cm

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