geometry question

[leahcole29420]

Can someome help me with these questions?

1. A circle has a circumfrance of 100 yds. Find the area.

2. A circle has an area of 1 m(squared). Find the diameter.

 

[mmm4444bot]

Hello Leah:

I'm confident that I can help you with these problems. What kind of help would you like?

Cheers,

~ Mark

 

[stapel]

1. A circle has a circumfrance of 100 yds. Find the area.

Plug the circumference value they gave you into the circumference formula they gave you (in your book and / or in class). Solve for the radius. Plug this into the area formula they gave you. Simplify to find the answer.

2. A circle has an area of 1 m(squared). Find the diameter.

Plug the area value they gave you into the area formula they gave you. Solve for the radius. Use the definitions they gave you of "radius" and "diameter" to find the value of the diameter. Simplify to find the answer.

If you get stuck, please reply with a clear listing of your steps and reasoning so far. Thank you!

Eliz.