The area of a circle with a radius of 3 cm is equal to the area of a square. What is the side length of the square? A. 3 cm B. 3π cm C. 3√π cm D. 9 cm 相关知识点: 试题来源: 解析 C。解析:圆的面积为π×3×3 = 9π平方厘米。设正方形边长为 a,则 a×a = 9π,...
The area of a circle with a radius of 3 cm is ___ square centimeters. A. 3π B. 6π C. 9π D. 12π 相关知识点: 试题来源: 解析 C。本题考查圆的面积公式。半径为 3 cm 的圆的面积是 A = πr² = π×3² = 9π 平方厘米。反馈 收藏 ...
If the diameter of a circle is 5 cm, what is the circumference and area of the circle? The area of a circle is 12.56 square centimeters. What is the circle's circumference? What is the radius of a circle whose area is equal to sum of the areas of the circles with radii which are...
Circumference length formula in terms of area C = √4·π·A Questions this calculator can answer: How to find the perimeter of a circle with a radius of 1.732 cm? A circle has a diameter of 3.464 cm. What is its circumference?
Find the area of a circle with radius 3.5 cm. 03:19 ABCD is a square with sides 12 cm each. Find its perimeter and area. C... 05:40 The wall of a room is 16 long and 6 m high. There is a long rectangula... 02:43 Rahul jogs around a square park every morning. If the ...
So, the area of the circle is 706.5 mm2 Example 2 Calculate the area of the circle shown below.SolutionA = πr2 square units = (3.14 x 282) cm2 = (3.14 x 28 x 28) cm2 = 2461.76 cm2 Example 3 The area of a circle is 254.34 square yards. What is the radius of the circle?
1【题目】5Given that the area of a circle with radius 10 cm is equal to the area of asector with centralangle 40°, then the radius of the sector iscm. 25 Given that the area of a circle with radius 10 cm is equal to the area of a sector with centralangle 40°, then the radiu...
3πcm2 πcm2 2πcm2 5πcm2 Text Solution Generated By DoubtnutGPT To find the area of a circle with a given radius, we can use the formula: Area of a Circle = πr² Where: -π (pi) is a constant approximately equal to 3.14, ...
. The radius of the circle is cm, the diameter of the circle is cm, and the circumference of the circle is cm. (π≈3) 相关知识点: 试题来源: 解析 5;10;30 Area=π(r^2)=75 cm2. r=5 cm. d=2r=10 cm. Circumference=πd=10*3=30 cm....
Find the area of a circle with radius 5 in. 9.99. If the sides of a square are increased by a multiple of 3, by what multiple does the area increase? 9.100. If the sides of a rectangle are increased by a multiple of 6, by what multiple does the area increase? 9.101. If the rad...