Answer:
the second one
Step-by-step explanation:
we dont know if the sides are congruent but we do know we have one height, one lenght, and one width. we have to find the area of two of each, and thats what the second one is
Examples include but not limited to: 2, 3, 5
Answer:
10,000
Step-by-step explanation:
We can find the area of the floor in cm^2 and divide by the are of 1 tile in cm^2.
1 m = 100 cm
10 m = 1000 cm
40 m = 4000 cm
area of floor = LW = 1000 cm * 4000 cm = 4,000,000 cm^2
area of tile = s^2 = (20 cm)^2 = 400 cm^2
number of tiles = 4,000,000/400 = 10,000
Answer: 10,000 tiles
