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Secondary 1 | Maths
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Date Posted: 5 years ago
Views: 354
30 800m is perfect sq
30 800
= 2x2x2x2x5x5x7x11
to make perfect sq
30 800 x 77
= 2x2x2x2x5x5x7x11 x 77
= 2x2x2x2x5x5x7x7x11x11
= (4x5x7x11)²
= 1540²
hence, m is 77
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30 800
= 2x2x2x2x5x5x7x11
to make perfect sq
30 800 x 77
= 2x2x2x2x5x5x7x11 x 77
= 2x2x2x2x5x5x7x7x11x11
= (4x5x7x11)²
= 1540²
hence, m is 77
.
.
.
See 1 Answer
30800m is a perfect square
30800 = 2 x 2 x 2 x 2 x 5 x 5 x 7 x 11
To make a perfect square, all factors must be in pairs
Hence, to make 30800m a perfect square,
m = 7 X 11 = 77
30800 = 2 x 2 x 2 x 2 x 5 x 5 x 7 x 11
To make a perfect square, all factors must be in pairs
Hence, to make 30800m a perfect square,
m = 7 X 11 = 77
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