Since the smaller circle has radius r, it must have turned through an angle of (2rθ)r=2θ . In addition to turning through an angle 2θ, the little circle has rolled through an angle θ against C. Thus, P has turned through an angle of 3θ as shown in the figure. (If the ...
【题目】A circle of radius 2 is centered at A. An equilateraltriangle with side 4 has a vertex at A. What is thedifference between the area of the region that lies inside the circle but outside the triangle and the areaof the region that lies inside the triangle but outsidethe circle...
(b)Draw a circle of radius 2.0 cm on the blank sheet of paper.(i). Place a Petri dish on top of the circle on the paper.. Use small pieces of adhesive putty at the edge of the Petri dish to secure it to the paper.. Place a small piece of adhesive putty at the centre of ...
2 is centered at A. An equilateral triangle with side 4 has a vertex at A. What is the difference between the area of the region that lies inside the circle but outside the triangle and the area of the region that lies inside the triangle but outside the circle?( ) A.8−π B....
A circle of radius 2 rolls completely around the inside perimeter of a square of side 10.What distance is covered by the centre of the circle? 3一道数学题What distance is covered by the centre of the circle?A circle of radius 2 rolls completely around the inside perimeter of a square ...
百度试题 结果1 题目5. Find the diameter of a circle whose radius is 2 cm. 相关知识点: 试题来源: 解析 We know, Diameter = 2 radius.Radius = 2 cm.= 2 ×2cm.=4cm.Therefore, diameter = 4 cm. 反馈 收藏
A circle of radius 2 rolls长为10的正方形内边滚动completely around the inside一周。 问圆心经过的长度是perimeter of a square of aide多少?10. What dietance is covered(A)16(B)24by the centre of the cirele?(C)32()40(A)16(B)24(E)上述答案都不对(C)32(D)40(E) None of these ...
百度试题 结果1 题目Circle A has a radius of ___. A. 3 cm B. 5 cm C. 8 cm D. 12 cm 相关知识点: 试题来源: 解析 B。解析:文章中明确提到 Circle A 的半径是 5cm。反馈 收藏
The diameter AB of a circle of radius 2 is extended to a point D outside the circle so that BD=3. Point E is chosen so that ED=5 and line E D is perpendicular to line AD. Segment A E intersects the circle at a point C between A and E. What is the are a of △ABC?( ) ...
A circle has a radius of 3 cm. What is the circumference of the circle? A. 6π cm B. 9π cm C. 18π cm D. 3π cm 相关知识点: 试题来源: 解析 A。圆的周长 = 2×π×半径,即 2×π×3 = 6π cm 。选项 B、C、D 计算错误。