the area of square is 289 CM square find its perimeter and the length of the diagonal
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Answer:
- area of square = 289
side^2= 289
side= 17
perimeter= 4× side
= 68
length of diagonal =?
by , pythagoras theorem
a^2+a^2=d^2
2a^2=d^2
2×17^2=diagonal^2
289×2=d^2
578root= diagonal
diagonal = 24.04 (approx )☺
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