a-mosaic-uses-150-square-tiles.-the-total-area-is-3000-cm-square.-estimate-the-side-length-of-a-tile. - GCSE Solutions - Central collection of solutions to all the Mathematics GCSE problems in the book, exams and past papers

9 A mosaic uses 150 square tiles. The total area is 3000 cm square. Estimate the side length of a tile.

A mosaic uses 150 square tiles. The total area is 3000 $c m^{2}$ .

a) Estimate the side length of a tile.

$S o l u t i o n : T o t a l a r e a = N u m b e r o f t i l e s x a r e a o f e a c h t i l e .$

$A r e a o f e a c h t i l e = \frac{T o t a l a r e a}{N u m b e r o f t i l e s}$

$A r e a o f e a c h t i l e = \frac{3000}{150} = 20$

$A r e a (s i d e x s i d e) s^{2} = 20$

$s = \sqrt{20} = 4.47 c m$

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Ruhi Quadri Published on 02 Jan 2021