Question

12 The first figure given below shows a wire in circular shape with the radius of 80cm.
Shyam cut out an arc from wire such that the arc makes an angle of 90° at the center,
if this arch is again bent in circular shapes as shown in the second picuture, find the
radius of the new circle​

Answer 1

Answer:

answer is 20, because second circle is made up of diameter of first circle

that mean half, so half is 40 which id diameter radious= half of diameter =20