What is the area of a circle with a circumference of 14π inches? The equation f

游客2024-01-12 80

问题 What is the area of a circle with a circumference of 14π inches?

选项

答案  The equation for the area of a circle is A=πr2. The equation for the circumference of a circle is C=2πr. Since you are given the circumference, you can use that to find the radius, r, and then use the radius to find the area:
14π=2πr
   14=2r
   r=7
Now substitute r into the equation for area:
Area=π(72)
Area=49π

解析

转载请注明原文地址:https://tihaiku.com/zcyy/3356544.html

相关试题推荐

________itornot,hisdiscoveryhascreatedastirinscientificcircles.A、Bel
Whichofthefollowingcouldbetheequationoflinelinthefigureabove?[img]
AcirclegraphshowshowtheMegaTechcorporationallocatesitsResearchandDev
Arectangularblockofgoodsisputinarectangularboxof4inchesby6inches
Inthecoordinateplane,pointsBandCareendpointsofadiameterofcirclewi
Acircularrim28inchesindiameterrotatesthesamenumberofinchespersecon
Forallrealnumbersx,theoperationx*isdefinedbytheequationx*=x+4,If(
[img]ct_gre5image100[/img]OisthecenterofthecircleColumnA
[img]ct_gre5image092[/img]RTisadiameterofthecircleabove.ColumnA
[img]ct_gre5image008[/img]Oisthecenterofthecircle.Theareaoftheshaded

随机试题

Achildattheageof4isprobablygoingtoa______schoolinBritain.A、nursery
[audioFiles]audio_eusm_j59_001(20082)[/audioFiles]A、Themanwasfined.B、Thema
AndrewCarnegie,knownastheKingofSteel,builtthesteelindustryinthe
W/O型乳化剂的亲水亲油平衡值通常为A.0.8～3B.3～8C.8～16D.13
涂膜防水层胎体材料长边搭接不应小于（　），短边搭接宽度不应小于（　）。 A、
是否在规定的时间以合理的成本实现了其既定目标，体现的是：A、经济性 B、效率
人与人之间的器官移植属于（）。A.自体移植 B.异种移植 C.同种异体移植
营业部提供的信息与咨询服务不包括()。A:向投资者推荐业绩优良的股票B:简单介
下列各项职工薪酬中，计提时一般不影响当期损益的有（）。A.在建工程人员的薪
已知年产15万吨的某工业产品项目的工艺生产装置为40000万元，现拟建年产45万

最新回复(0)

What is the area of a circle with a circumference of 14π inches? The equation f

________itornot,hisdiscoveryhascreatedastirinscientificcircles.A、Bel

Whichofthefollowingcouldbetheequationoflinelinthefigureabove?[img]

AcirclegraphshowshowtheMegaTechcorporationallocatesitsResearchandDev

Arectangularblockofgoodsisputinarectangularboxof4inchesby6inches

Inthecoordinateplane,pointsBandCareendpointsofadiameterofcirclewi

Acircularrim28inchesindiameterrotatesthesamenumberofinchespersecon

Forallrealnumbersx,theoperationx*isdefinedbytheequationx*=x+4,If(

[img]ct_gre5image100[/img]OisthecenterofthecircleColumnA

[img]ct_gre5image092[/img]RTisadiameterofthecircleabove.ColumnA

[img]ct_gre5image008[/img]Oisthecenterofthecircle.Theareaoftheshaded

Achildattheageof4isprobablygoingtoa______schoolinBritain.A、nursery

[audioFiles]audio_eusm_j59_001(20082)[/audioFiles]A、Themanwasfined.B、Thema

AndrewCarnegie,knownastheKingofSteel,builtthesteelindustryinthe

W/O型乳化剂的亲水亲油平衡值通常为A.0.8～3B.3～8C.8～16D.13

涂膜防水层胎体材料长边搭接不应小于（ ），短边搭接宽度不应小于（ ）。 A、

是否在规定的时间以合理的成本实现了其既定目标，体现的是：A、经济性 B、效率

人与人之间的器官移植属于（）。A.自体移植 B.异种移植 C.同种异体移植

营业部提供的信息与咨询服务不包括()。A:向投资者推荐业绩优良的股票B:简单介

下列各项职工薪酬中，计提时一般不影响当期损益的有（）。A.在建工程人员的薪

已知年产15万吨的某工业产品项目的工艺生产装置为40000万元，现拟建年产45万

Forallrealnumbersx,theoperationxisdefinedbytheequationx=x+4,If(

涂膜防水层胎体材料长边搭接不应小于（　），短边搭接宽度不应小于（　）。 A、