Page 272 - NUMINO_WB_5B

144-B1-2

2. Find the surface area. a.
4 cm
Example 7 cm

A 5 cm

B C D E 4 cm
F 2 cm

4 cm
The area of A and F
The area of B and D
The area of C and E
Surface area 8 8 16) 2

64 (cm2)

b. c.
3 cm 6 cm

3 cm 9 cm
3 cm 4cm