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

游客2024-01-12 73

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://www.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

Whileitistruethatthiscompetitionmayinduceeffortstoexpandterritoryat
ManyBrazilianscannotread.In2000,aquarterofthoseaged15andolderwe
Thefollowingquestionspresentasentence,partofwhichorallofwhichisund
LookatthefiverestaurantadvertisementsA-Ebelow.Forwhichrestaurantare
[originaltext]It’ssunnytoday.Whynotgooutforapicnic?[/originaltext][or
【B1】[br]【B3】A、unusuallyB、generallyC、uncomfortablyD、commonlyA同义辨析题。空格所在句意为：
下列各项中不属于中央银行银行的银行的职能的是（）A.充当最后贷款人 B.代理
领导带领机关干部扫大街，从官员和机关的角度看，这当然是好事，可以拉近与民众的距离
维也纳古典乐派的三个代表人物是（　　）。A.巴赫、海顿、贝多芬 B.海顿、贝多
压实黏土防渗层施工前应选定满足要求的土料场，对其料场查勘要求的描述错误的是（　）

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

Whileitistruethatthiscompetitionmayinduceeffortstoexpandterritoryat

ManyBrazilianscannotread.In2000,aquarterofthoseaged15andolderwe

Thefollowingquestionspresentasentence,partofwhichorallofwhichisund

LookatthefiverestaurantadvertisementsA-Ebelow.Forwhichrestaurantare

[originaltext]It’ssunnytoday.Whynotgooutforapicnic?[/originaltext][or

【B1】[br]【B3】A、unusuallyB、generallyC、uncomfortablyD、commonlyA同义辨析题。空格所在句意为：

下列各项中不属于中央银行银行的银行的职能的是（）A.充当最后贷款人 B.代理

领导带领机关干部扫大街，从官员和机关的角度看，这当然是好事，可以拉近与民众的距离

维也纳古典乐派的三个代表人物是（ ）。A.巴赫、海顿、贝多芬 B.海顿、贝多

压实黏土防渗层施工前应选定满足要求的土料场，对其料场查勘要求的描述错误的是（ ）

Forallrealnumbersx,theoperationxisdefinedbytheequationx=x+4,If(

维也纳古典乐派的三个代表人物是（　　）。A.巴赫、海顿、贝多芬 B.海顿、贝多

压实黏土防渗层施工前应选定满足要求的土料场，对其料场查勘要求的描述错误的是（　）