The answer is the first one in the options
Answer:
The circumference of a circle is calculated by multiplying the diameter of a circle by π (π × d) . The formula to calculate the circumference of a circle is usually written c = πd .
Step-by-step explanation:
Pi is a number that is approximated by 3.14, or 22/7. It is the ratio of the circumference to the diameter of any circle. This ratio can be rearranged to find circumference of a circle by multiplying pi times diameter.
I hope this helps.
Answer:
a polygon is a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal figure.
Step-by-step explanation:
Answer:
24 nickels 3 quarters
Step-by-step explanation:
195-25(3) = 120/5 = 24 nickels 3 quarters
Answer:
x = 12.6
Step-by-step explanation:
When you have one fraction equated to another one, the means-extremes property allows you to cross multiply, as follows:

can be rewritten as:
a*d = c*b
For this case:

5*x = 7*9
x = 63/5
x = 12.6