An artist is designing a pattern of triangular tiles to cover a wall. Each section of the pattern is identical to the section shown here. If the wall is 576 cm long and 384 cm high, how many black tiles will the artist need to use on the wall ?

We know dimension of wall As : 576 cm long and 384 cm high

SO, Area of that surface of the wall = 576 $\times $ 384 = 221184 cm

^{2}

As given pattern

And area of pattern = 24 $\times $ 16 = 384 cm

^{2}

So,

Total number of pattern used to cover this wall = $\frac{221184}{384}$ = 576

**And we can see that in each pattern there are 3 black tiles , So total numbers of tiles used = 576 $\times $ 3 = 1728 ( Ans )**

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