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 (pi)*r*r...

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 (pi)*r*r...

The Ratio of two circles is 2:5. The circumference of the large circle is 62.8 inches.

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...

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...

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

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...

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

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

I am unsure how to solve using the degrees.

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...

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

25ft2

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?

The base of the shed is 6 m long and the door must be at least 1 m vertically from the roof of the shed. 1. What is the largest area the doorway can have and what are its dimensions...

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.

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

Areas of Polygons and Circles Let's move away from the widely-dreaded two-column proofs that we have been doing in the previous sections, and focus on geometry that revolves solely around computations. In this section, we will use our knowledge of different polygons and circles to help us measure their areas. In the two-dimensional plane, we use area to express a defined quantity... read more

Areas of Circles and Sectors In order to work on the final section of our study of areas, we must first learn about a shape that we have not discussed at all in the past. In fact, this shape is not a polygon at all, which means that it doesn't have vertices or sides. The shape we are going to focus on in this section is called a circle. Let's begin this lesson by examining the... read more

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