Standard Mathematics Primary 5 Volume

The figure shows a solid built with 1-cm unit cubes. The arrangement has 2 columns and 2 rows: the front-left stack is 3 cubes tall, front-right is 2 cubes tall, back-left is 1 cube tall and back-right is 2 cubes tall. How many unit cubes are used in total?

A 8
B 10
C 6
D 12
Show Worked Solution

Worked Solution

Step 1: Identify the height of each stack from the diagram. Front-left: 3 cubes Front-right: 2 cubes Back-left: 1 cube Back-right: 2 cubes Step 2: Add the number of cubes in every stack. Total = 3 + 2 + 1 + 2 Step 3: Compute the sum. 3 + 2 = 5 5 + 1 = 6 6 + 2 = 8 Final answer: 8 unit cubes Answer: 8

Correct answer: 8

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