Find the area of a circle with a radius of 8 centimeters.用8厘米的半径算出圆周的面积.A right triangle has one angle that measures 90°.一个直角三角形有一个角是90°.right triangle意为直角三角形(专业术... 相关推荐 1Find the area o f acircl ewith aradius o f8centimeters. A righ ...
如图9所示，圆O与圆Q相切于点P，P、Q、O共线，试求阴影部分的面积（单位为平方厘米）解：阴影面积=大圆-小圆=π（14*14-7*7）=147π≈462，所以选C
七、英语数学(翻译)(10分)1.Find the area of a circle with a radius of 8 centimeters.2.A right triangle has one angle that measures90°.七、英语数学(翻译)(10 分) 1.Find the area of a circle with a radius of 8 centimeters. 2.A right triangle has one angle that measures 90°. ...
Lessons To Find The Area Of A CircleKuldip Kaur
We wish to know how to find the area of a circle. In order to find the area of a circle, we first need to identify the measure of the radius. Then,...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can ...
Find the area of a circle with a radius of 7 units.搜索 题目 Find the area of a circle with a radius of 7 units. 答案 解析 null 本题来源 题目:Find the area of a circle with a radius of 7 units. 来源: 越分练习题 收藏 反馈 分享...
The area of a circle is calculated using the formula A=πr2 where r is the radius of the circle.Answer and Explanation: The circumference of a circle is calculated as: C=2πr Given that a circle has a circumference of 120 cm, the radius of this circle......
Solve:Given that the circumference is 31.4, find the area of the circle.Given that the area of a circle is 28.26, find the circumference.(π=3.14) 答案 (1)78.5.(2)18.84.(1)2πr=2×3.14×r=31.4⇒r=5, so the area of the circle is πr2=3.14×52=78.5.(2)πr2=3.14×r2=28...
Where "Area" is the circle's area. (pi) is a Mathematical constant with an approximate value of 3.14159. r is the radius of the circle, which is the distance squared (raised to the power of 2) from the circle's center to any point on its edge. ...
Now the area of the circle is π×r2=227×72=154 cm2. Suggest Corrections 0 Similar questions Q. Find the area of a circle whose radius is 7 cm (in cm) Q. Radius of circle is 7 cm. Find perimeter and area of the circle. Q. Find the area of one fourth of a circle having ra...