Question

Number of circular tiles along length of room is ?

Answer 1

Answer:

As the diameter of circular tile is 50cm each, then radius=

2

0.5

=0.25m

Number of tiles lengthwise =

0.5m

5

=10tiles

Number of tiles widthwise =

0.5m

4

=8tiles

So, 10 tiles are length wise and 8 tiles are width wise.

So, total number of tiles =10×8=80

∴ Area of floor not covered by tiles

Area of rectangular floor - Area of 80 tiles

=5×4−80πr

2

=20−80×π×0.25×0.25

=20−

100×100×100

8×314×25×25

=20−

10

157

=20−15.7=4.3m

2

Hence,the area of floor not covered by tiles =4.3m

2

Answer 2

Step-by-step explanation:

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