Calculate Tiles Needed: Converting 850 cm² Pool Area to 10x5 cm Tiles

Question

Joseph is building a pool.

He buys tiles with sides measuring 10 cm by 5 cm.

The size of Joseph's pool is 850 cm².

How many tiles does Joseph need?

Video Solution

Solution Steps

00:00 How many tiles does Yossi need to fill the pool?

00:03 Let's use the formula for calculating rectangle area

00:06 Side(5) multiplied by side(10)

00:09 This is the area of one tile, now let's see how many are needed for the pool

00:13 We'll divide the pool area by the area of one tile

00:16 This is the required number of tiles and the solution to the problem

Step-by-Step Solution

First, let's calculate the area of the tile by multiplying length and width:

$10\times5=50$

Now let's calculate how many tiles fit in the given pool area - 850 cm²:

$850:50=17$

Therefore, Yossi needs 17 tiles

Answer

$17$

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