Multiplying or dividing two related quantities by the same number is called scaling
Answer:
Final answer is .
Step-by-step explanation:
Given problem is .
Now we need to simplify this problem.
Apply formula
so we get:
Hence final answer is .
Answer:
Circumference = 10π
Step-by-step explanation:
First identify the circumference formula as such:
2πr (where r ⇒ radius, π ⇒ pi)
Knowing 2 times the radius (2r) in the formula can be rewritten as the diameter, the formula itself can be rewritten as:
πd (where d ⇒ diameter, π ⇒ pi)
If we know the diameter = 10 inches, substitute in the circumference formula πd to get:
π * 10 inches = 10 * π inches = 10π inches
You need to use the distance formula to find the radius of the circle.
The radius is 3.
The circumference is