Hello,
Shall we begin?
10.80
+ 4.73
-----------
15.53
<span>Answers: 15.53</span>
Circumference of a circle - derivation
This page describes how to derive the formula for the circumference of a circle.
Recall that the definition of pi (π) is the circumference c of any circle divided by its diameter d. Put as an equation, pi is defined as
π
=
c
d
Rearranging this to solve for c we get
c
=
π
d
The diameter of a circle is twice its radius, so substituting 2r for d
c
=
2
π
r
If you know the area
Recall that the area of a circle is given by
area
=
π
r
2
Solving this for r
r
2
=
a
π
So
r
=
√
a
π
The circumference c of a circle is
c
=
2
π
r
Answer:
What's the intervals for this question
Step-by-step explanation:
Answer:
9 yards.
Step-by-step explanation:
3 feet=1 yard.
9x3=27.
27>25.
So in conclusion, 9 yards is the bigger measurement.
For this case we must solve the following linear equation:
Adding similar terms from the left side of the equation:
Subtracting
from both sides of the equation we have:
Thus, equality is not fulfilled. So the equation has no solution.
Answer:
No solution
