Answer:
17.8
Step-by-step explanation:
All you have to do is 8.9 x 2 = 17.8
HOPE HIS HELPS
(20*16 ft^2)(144 in^2/ft^2)(tiles/(10*10 in^2)
320ft^2(144in^2/ft^2)(tiles/100in^2)=460.8 tiles
However tiles are quantized integer units so 461 tiles will be needed to tile the kitchen.
If its a 90 degree then the answer is 68
if its a 180 degree then the answer is 158
if its a 270 degree then the answer is 248
if its a 360 degree then the answer is 338
<span>Use formula: (a-b)</span>² = a² - 2ab + b²<span>
(r-1)</span>² = r² - 2r + 1