Page 184 - NUMINO_WB_6A
P. 184
128-B5-2

2. There are small circles inside a large circle with a diameter of 10 cm. Find the
sum of the circumferences of the small circles.

Example

5 cm 5 cm

a.

4 cm 4 cm 2 cm

b.

3 cm

1 cm
1 cm
   179   180   181   182   183   184   185   186   187   188   189