Question

20. A circle of radius rz is moved along the circumference of a fixed radius rı as shown in the
figure given below. The radius of fixed circle is double the radius moving circle. Answer the
following questions:
C2
() Write the relationship between r, and 12.
(A) r=r
(B) r:=212
(C) 21.12
(D) none of these
(ii) How much distance is travelled in completing one revolution along a circle?
(A) 400
(C) 2017
(D) nr:
(iii) Name the points which remain equidistant from each other throughout the activity.
(A) Centre
(B) point A
(C) radius
(D) none of these
(iv) What is the length of CCz.
(C)r-12
(D)r,+r
(V) The circles having same centre are called
(A)Concentric circles (B) Orthogonal Circles (C) Contact of Circles (D) None of these
Part B
(B) 12​

Answer 1

Answer:

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