Answer:
- Circumference: 12.56 yd
- Area: 12.56 yd²
Step-by-step explanation:
The circumference is given by ...
C = πd
C = (3.14)(4 yd) = 12.56 yd
The area is given in terms of diameter by ...
A = (π/4)d²
A = (3.14/4)(4 yd)² = 12.56 yd²
Adding all these numbers together, you should get 30.25 ft.
I believe your answer is:
<span>C. Two times r equals the diameter of the circle. Pi is needed for all circle formulas, so you multiply by Pi since you are finding the circumference.
2r = d or, 2 radius = one diameter
</span>π is used in both circle equations:
<span>
2</span>πr (circumference)
πr² (area of circle)
hope this helps
Answer:
12.7
Step-by-step explanation: