The formula for circumference is C = 2πr, where r is the radius of the circle. However, the radius is half the diameter, so the circumference could also be calculated using the formula C = πd, where d is the diameter of the circle. π is commonly shortened to 3.14.
If the diameter of the circle is 6 feet, an estimate of the circle's circumference is 6 times 3 feet or 18 feet.
Answer:
18 ft
Answer:
x ≈ 4
Step-by-step explanation:
We use tan∅ to solve this:
tan30° = x/7
7(tan30°) = x
x = 4.04145
Remember that tangent is opposite over adjacent.
First, convert to improper fractions, which are easier to use for us:
16/7-4/3
Convert to a common denominator of 21:
48/21-28/21
Finally, subtract to get:
20/21
Answer:
to my beliefs it is 18. I THINKKKKK I LIKE ALELI THINKS ITS 18