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24 Answered Questions for the topic area of a circle

Area Of A Circle Geometry Area Of A Rectangle

04/03/20

Geometry rectangle/circle

So basically it’s a rectangle with a length of 600ft and a width of 400ft and the question is How much of the field is being watered ? that has 32 circles inside and a diameter of 50ft.I got the... more
Area Of A Circle Geometry

02/14/19

nick caculated that a teacup has the cicumference of 12.56 inches what is the teacups diameter

nick caculated that a teacup has the circumference of 12.56 inches what is the teacups diameter
Area Of A Circle Diameter Of Circles

03/12/18

Calculate the area to be resurfaced. Answer in square metres to the nearest whole number.

The traffic roundabout has a circular garden in the centre and two lanes for traffic encircling the garden. The diameter of the garden is 16 metres and each lane is 3 metres wide. Each lane is to... more
Area Of A Circle

10/06/17

area, circumference of a circle, volume

Aaron creates a stacked cake comprised of three cylindrical sections as picture below, and plans to cover the top of each section with a different color icing. Each lower section is a total of two... more

07/24/17

What is the probability of hitting each target if it is assumed that a player’s throw will always hit the board? Hint: The probability of hitting each target

 Width:20 Length: 12x+24 of all boards(rectangles). Target within board 1 measurements(rectangle): width 6x-3 length: 2x+4. target within board 2 measurements (circle): radius 6x. target within... more
Area Of A Circle

06/23/17

finding area

I have a circumference of 28cm. I want to find the area. I know the formula for area but I'm getting stuck on the 28cm. Is that the diameter or radius? If the question was asking me to find the... more
Area Of A Circle

05/01/17

what is the approximate value of 80 meters

what is the approximate value of a 80 inch circle.
Area Of A Circle Area And Circumference

04/06/17

Doug plans to form circular outlines from wire. Each circle will have a radius of 4 inches. How many of these circles can Doug make from 360 inches of wire?

you have only four choices to choose from  a.14 b.25. c.29 d.90 that is all the choices
Area Of A Circle Circle

02/17/17

having doubt on area of circle

we know that the circumference of the circle is 2(pi)r so if we draw lines from each point to the centre then we should get the area of the circle and it should be 2*(pi)*r*r , ;) instead of... more
Area Of A Circle

10/18/16

Write a proportion to find the area of the large circle if the area of the small circle is 19.8 square inches.

The Ratio of two circles is 2:5. The circumference of the large circle is 62.8 inches.
Area Of A Circle College Algebra Word Problem

09/12/16

Word problem- find the area of the circle

The formula for the area of a circle is A=πr^2(to the second power) where r is the length of the radius. (The figure in front of the R is pie)   a. If the radius is given as 5x^3. (To the third... more
Area Of A Circle Geometry Circle Equations

04/21/16

How tall will the cake be?

Cake recipe makes a cake that is 6 inches in diameter and 2 inches high. If I use the same recipe but pour the batter into a round cake pan that is 8 inches in diameter, how tall will the cake be?
Area Of A Circle Diameter Of Circles

02/27/16

The tire of a toy car has a diameter of 9 cm. The inner wheel has a circumference of 6 pi cm. What is the area of the tire?

A word problem of grade 9 geometry. It asks about area by giving the diameter and circumference. 
Area Of A Circle Circles

09/19/15

How long is the trace of water left on the floor?

A wet bicycle tire leaves a trace of water on the floor. The tire has a radius of 14 inches, and the bicycle wheel makes 3 full rotations before stopping. How long is the trace of water left on the... more
Area Of A Circle

09/15/15

a rotating water sprinkler spraysa jet of water which is 300cm long. How many sqaure metres does the sprinkler cover in one revolution

Please help this is a part of my practise test i am only seeing my teacher in 3 days and i would like to know how to do it or if i am doing it wrong
Area Of A Circle

05/13/15

story problem

A circular hot tub with diameter of 15ft sits inside a square platform that measures 20ft on a side to the nearest whole number what is the area of the platform surface around the tub
Area Of A Circle

05/02/15

Determine the area of a circle with a 3 meter radius between 125 degrees and 212 degrees.

I am unsure how to solve using the degrees.
Area Of A Circle Math Area

03/25/15

Area of a circle

Sometimes Mac takes his labrador with him to work at his autobody shop he hooks aces card to a 60 foot chain mounted on the corner of the shop which is a 40 x 80' rectangular building east enjoys... more
Area Of A Circle

12/04/14

Solve for "r"

Equation for a circle is A=2πrh+2πr2   h=4r   HINT: 'A' will end up on the right side of the equals sign
Area Of A Circle Area Radius

12/01/14

if the area of a square is 25ft2 then what is the radius and and the area of the circle?

25ft2
Area Of A Circle Diameter Of Circles

10/06/14

Diameter of a pizza is 14 inches and each slice has an area of 14.125 inches. How many slices can I get out of the pizza?

If I know the diameter of a pizza is 14 inches, how do I figure out how many slices I can get if each slice has an area of 14.125 Inches?
Area Of A Circle

05/13/14

A culinary student decorates an 8-in -diameter round cake. What is the approximate area of the top of the cake?

I need help figuring out the problem. Do you use the formula of A= ∏r2 and find the exact area and approximate area? Thank you for your help.
Area Of A Circle

01/04/14

what is a pi ? how the area of a circle is calculated?

the diameter of a wheel car is 77cm. how many revolutions will it make to cover a distance of 72.6m?

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