Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**emmakatecumbo****Member**- Registered: 2017-09-22
- Posts: 35

I need help, I answered every question but my teacher is asking for the work for each question, my dad helped me with this assignment and he is out of town so i have no idea how to do the work. Could someone help explain how i got the answer to each problem, my dad is out of town so he can't help me and Im clueless. I need it done soon, any help would be very appreciated <3 thank you

What is the circumference of the circle if the radius is:
1. 6

37.7

2. 2

12.57

3. 5x

4. 3x-4

5. 5x/3

What is the radius if the circumference is:
6. 30x(pi)

15x

7. 4x-10pi

(2x/pi) - 5

8. (5/2)pi

(5/4)

9. 14pi

7

10. (x + y)pi

(x+y)/2

What is the length of the arc if:
11. r=10 n=20

10(pi)/ 9

12. r=3 n=6

pi/10

13. r=4 n=7

7(pi)/45

14. r=2 n=x

x(pi)/90

15. r=y n=x

x*y*pi/180

What is the radius if:
16. n=30 L=1/3xy(pi)

2xy

17. n=40 L=8/9(t)(pi)

4t

18. n=15 L=(21/36)pi

7

19. n=5 L=1/2pi

18

20. n=18 L=6(y)pi

60y

Offline

**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,263

Circumference = 2*pi*radius

Go back here when you have tried at least number 1 and 2.

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

Offline

Pages: **1**