answersLogoWhite

0

For a circle, A = pi*r2 where A is the area and r the radius. For an anuulus, A = pi*(R2 - r2) where R is the outer radius and r the inner radius. So, A = pi*(182 - 102) = 703.717 (to 3 dp)

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

What are circles having the same center?

concentric circles


What are Circles having same centre but different radii called?

Concentric circles are circles with the same common centre.


Circles having the same center?

Concentric Circle


What is the word for two circles having identical circumferences A circle is both concentric and?

Concentric and coincident, perhaps.


What are concentrate circles?

AnswerThat would be circles with different sizes, having the same center.AnswerConcentric circles have a common center and different radii.Bulls eye could be an example of concentric circles.ans; Concentric circles are nothing but 2or more circles having common center but having different radius.Source: www.icoachmath.com


What does concentric mean?

Concentric means having a common center, such as circles within circles where each one shares the same central point.


What is a Urantia pearl?

"Urantia Pearl" is new symbolism derived from the following quote in the Urantia Papers, our planet's Fifth Epochal Revelation. That the pearl is the only jewel made by a living creature provides the symbolic association with the continuing spiritual advancement of our planet, Urantia, in its march to light and life*. For as the planet advances by the efforts of continuous generations of living mortals so does the pearl develop by the responses of the oyster to its stimulating environment: "You were truly among the least of all creation until Michael's bestowal elevated your planet to a position of honor and great universe interest"** The Urantia Pearl geometric symbol consists of four nested circles having incremental diameters in 1,2,3,4 relationship. For example, diameters of 100, 200, 300, and 400 units reflects the diameters of one set of Urantia Pearl circles. These incremental diameters are symbolic of the purposeful and guided steps whereby mortals ascend to the many advancement plateaus in the local universe before they continue with the Paradise ascent. Also, the four nested circles are positioned to create an abstract representation of the universe circuits, representation that is reminiscent of the concentric circles symbol revealed in the Urantia Papers.*** Unlike the concentric circles symbol with its white and azure blue colors, the Urantia Pearl symbol may display the circles' geometry in any media and with the artistic embellishment and colors preferred by the artist, symbolism of universe-mandated free will. the Urantia Papers, published since 1955 as the Urantia Book: * Paper 55, Introduction, "The Spheres of Light and Life". ** Paper 41, Section 10, "Origin of Inhabited Worlds". *** Paper 93, Section 3, "Melchizedek's Teachings".


Are circles in the same plane and having the same center congruent circles?

Yes, it is. Circles that are in the same plane and having the same center are called congruent circles.


Bulidings having columns two diameters apart?

Systyle


What theory envisioned cities as having a central business's district with other areas falling in a circular pattern outward?

Concentric zone theory proposed by sociologist Ernest Burgess, envisions a central business district at the core of the city surrounded by zones of decreasing land value and socioeconomic status as you move outwards in concentric circles.


What rhymes with eccentric?

Concentric, which is an adjective meaning, "having a common center".electric


What two models depict cities as having a single core?

The concentric zone and sector models.