Question
Bob made a square table top with 100 white square tiles. He painted the tiles along the edge of the table red. How many tiles are red?
You must show your work
You must show your work
Answers
Ms. Sue
The table's dimensions are 10 by 10 tiles, making a total of 40 tiles on the edges.
Steve
However, if you count all 10 across the top and bottom, then count all 10 on the sides, you have counted the corners twice.
There are only 36 tiles on the edges.
inner area = 8x8 = 64
edges = 36
total = 100
There are only 36 tiles on the edges.
inner area = 8x8 = 64
edges = 36
total = 100
Ms. Sue
Oops, thanks Steve, for correcting me.
Deandra
45
Deandra
I think it is 45.