Page 280 - NUMINO_WB_5B

144-B5-2

2. Fill in the blanks.

Example

Surface area: 2 3 6 c m 2 If the width is a, then 48 8 a.
8 cm Therefore, a 6.

236 48 2) 6 )2
cm 8 )2

96 12 16

Area 4 8 c m 2 96 28
28 140
Therefore, 5 (cm).

a. Surface Area: 11 2 c m 2 b. Surface Area: 1 0 2 c m 2
cm 3 cm

4 c m Area 2 0 c m 2 cm

c. Surface Area: 1 9 8 c m 2 d. Area 9 c m 2
Surface Area: 1 6 0 c m 2
cm
cm
9 cm 1 0 c m Area 2 0 c m 2
Area 5 4 c m 2