Answer:
[tex]564[/tex] tiles
Step-by-step explanation:
there are many ways to solve this soo...
1. convert to centimetres (there are 100 centimetres in 1 metre)
2. the square tiles area = [tex]20*20=400cm[/tex]
2. find the large area (4.8m x 3.8m or 480cm x 380cm)
[tex]480 *380=182400cm[/tex]
2. find the two smaller areas (1.2m x 1.8m or 120cm x 180cm)
[tex]2(120*180)=4.3200cm[/tex]
3. add to find total area
[tex]182400 +43200=225600cm[/tex]
4. find how many tiles are needed
[tex]\frac{225600}{400}= 564[/tex] tiles
