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The square of a diagonal of a square is 128cm^2.find the side of a square

Posted by Debraj Bhattacharjee 6 years, 10 months ago

CBSE > Class 07 > Mathematics

1 answers

Ram Kushwah 6 years, 10 months ago

If d is diagonal a is side

then

d2=a2+a2

2a2=d2=128

a2=64

a=8 cm

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CBSE > Class 07 > Mathematics