# circle

### When a circle's radius triples, what happens to its area?

When a circle's radius triples, what happens to its area? A = πr^2 When r = 3r, then we have: a = π(3r)^2 A = 9(πr^2) This means Area increases...
Thread by: math_celebrity, Feb 19, 2023, 0 replies, in forum: Calculator Requests

### What is the formula for the circumference of a circle?

What is the formula for the circumference of a circle? Given radius r and diameter d, the circumference C is: C = 2πr or πd
Thread by: math_celebrity, Feb 18, 2023, 0 replies, in forum: Calculator Requests

### What is the formula for the area of a circle?

What is the formula for the area of a circle? Given a radius r, we have Area (A) of: A = πr^2
Thread by: math_celebrity, Feb 18, 2023, 0 replies, in forum: Calculator Requests

### What is the ratio of the area of a circle to the area of a square drawn around that circle? Express

What is the ratio of the area of a circle to the area of a square drawn around that circle? Express your answer in terms of pi. Area of a circle...
Thread by: math_celebrity, Jan 31, 2023, 0 replies, in forum: Calculator Requests

### Laura found a roll of fencing in her garage. She couldn't decide whether to fence in a square garden

Laura found a roll of fencing in her garage. She couldn't decide whether to fence in a square garden or a round garden with the fencing. Laura...
Thread by: math_celebrity, Jan 20, 2023, 0 replies, in forum: Calculator Requests

### If the diameter of a circle is n, what is the circumference?

If the diameter of a circle is n, what is the circumference? Diameter of a circle = pi(d) Given d = n, we have: Diameter = pi(n)
Thread by: math_celebrity, Dec 13, 2022, 0 replies, in forum: Calculator Requests

### A dog on a 20-foot long leash is tied to the middle of a fence that is 100 feet long. The dog ruined

A dog on a 20-foot long leash is tied to the middle of a fence that is 100 feet long. The dog ruined the grass wherever it could reach. What is...
Thread by: math_celebrity, Dec 5, 2022, 0 replies, in forum: Calculator Requests

### Fantasia decided to paint her circular room which had a diameter of 25 feet. She started painting in

Fantasia decided to paint her circular room which had a diameter of 25 feet. She started painting in the center and when she had painted a circle...
Thread by: math_celebrity, Dec 2, 2022, 0 replies, in forum: Calculator Requests

### A circle has a center at (6, 2) and passes through (9, 6)

A circle has a center at (6, 2) and passes through (9, 6) The radius (r) is found by using the distance formula to get: r = 5 And the equation...
Thread by: math_celebrity, Oct 17, 2021, 0 replies, in forum: Calculator Requests

### a painter is painting a circular sculpture. The sculpture has a radius of 5 meters. How much paint s

a painter is painting a circular sculpture. The sculpture has a radius of 5 meters. How much paint should she use to paint the sculpture Area of...
Thread by: math_celebrity, Jun 3, 2021, 0 replies, in forum: Calculator Requests

### center (3, -2), radius = 4

center (3, -2), radius = 4 To see the general form or standard form, you can check out this link:...
Thread by: math_celebrity, Aug 11, 2020, 0 replies, in forum: Calculator Requests

### If the circumference of a circular rug is 16π feet, then what is the area of the rug in terms of pi

If the circumference of a circular rug is 16π feet, then what is the area of the rug in terms of pi C = 2pir, so we have: C = 16π 16π = 2πr...
Thread by: math_celebrity, Mar 31, 2020, 0 replies, in forum: Calculator Requests

### Marco orders a large pizza, with a diameter of 14 inches. It is cut into 8 congruent pieces. what is

Marco orders a large pizza, with a diameter of 14 inches. It is cut into 8 congruent pieces. what is the area of one piece? A pizza is a circle....
Thread by: math_celebrity, Mar 28, 2019, 0 replies, in forum: Calculator Requests