The distance around a round object (i.e. a circular pool, in this case) is also known as its circumference.
The formula for working out circumference is π × d, where π is the value of pi (usually rounded to 3.14) and d is the diameter.
Therefore, to work out the diameter, you just have to work backwards.
So you know the circumference, and you know the value of pi, therefore you just do:
C = π × d
67.51 = 3.14 × d
Now you just have to divide both sides by 3.14 to isolate the value of d and work out the diameter:
67.51 ÷ 3.14 = d
21.5 = d
Therefore, the diameter is 21.5 ft.
Answer:
2 units because there is no change in size.
Answer: True
Explanation:
ABCD is a face on the figure
X=first number
2x= second side
3.5x= third side
X+2x+3.5x=65
6.5 x= 65
Divide both sides by 6.5
X=10. First side
2x= 20. Second side
3.5x= 35 = third side
10, 20, 35
The dekameter (or decameter) first needs to be a translated into how many
the meters. deka means 10, so a dekameter it must be 10 meters. So we have to
divide 250 by 10, and then we will come up with 25 dekameters.
hope that helps!!