Question
PSLE
Ethan glued 15 cubes of side 1 cm to form the solid shown.
  1. Ethan painted the whole solid, including the base. What was the total painted area?
  2. Ethan added some cubes of side 1 cm to the solid to form a cuboid 5 cm by 5 cm by 3 cm. How many cubes did he add?
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
Ethan glued 15 cubes of side 1 cm to form the solid shown.
  1. Ethan painted the whole solid, including the base. What was the total painted area?
  2. Ethan added some cubes of side 1 cm to the solid to form a cuboid 5 cm by 5 cm by 3 cm. How many cubes did he add?