Area of polygon = 1/2 pa. So it would be 0.5 x 6 x 3. The fire the area is 9
Just divide.

0.583333. . .
^ This is the thousandths place
Look at the number after that, if it's 5 or more we round up, if it's 4 or less we round down.
It's 3, so we round down to 0.583.
Answer:
160 metres per minute
Step-by-step explanation:
800 / 5 = 160
1800 because the 18 cant fit in the tens