首页
登录
职称英语
If the area of a circle is 81π, then the diameter of the circle isA、9B、18C、36
If the area of a circle is 81π, then the diameter of the circle isA、9B、18C、36
游客
2024-01-14
32
管理
问题
If the area of a circle is 81π, then the diameter of the circle is
选项
A、9
B、18
C、36
D、9π
E、18π
答案
B
解析
The formula for the area of a circle is πr2. Therefore, the radius of this circle is the square root of 81, or 9. The diameter is twice the radius, so 18.
转载请注明原文地址:https://tihaiku.com/zcyy/3360320.html
相关试题推荐
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswr
随机试题
【1】[br]【9】[originaltext]Goodmorning.Intoday’slecture,weshalldiscus
NEWHORIZONS Areyoulookingforsomethinginterestingtodo?
AfterthreeyearsatNewYorkUniversity,Ileftatthetimetotakeasix-m
在工程项目进度控制计划系统中,由建设单位负责编制的总进度计划表包括()。A:工
弯矩、剪力和扭矩共同作用的弯剪扭混凝土构件,剪力与扭矩、弯矩与扭矩均存在相关性,
货币经纪公司可以向境内外金融机构提供经纪服务,也可以从事金融产品的自营业务(
某地对多栋建筑的消防应急照明和疏散指示系统进行验收,经过分析整理,得出下列判定结
悬饮后期,络气不和,当选( ) A.香附旋覆花汤 B.已椒苈黄汤 C.十
客户姓名或者名称、有效身份证明文件号码和客户期货结算账户户名之外的客户信息,监控
现阶段,深化预算管理制度改革的主要内容有()。A.完善政府预算体系 B.实行中
最新回复
(
0
)