You can read the story of Sarin and the siblings making greeting cards for their mother by reading posting on **Sarin, Hairu and Fatimah make greeting cards for Mother’s Day** in Welcome page.

Read posting **Sarin learns Lines and Angles (Math concept)** to understand the concept of lines and angles. Read also posting **Sarin learns Shapes and Solids in school (Math Concept)** to know about shapes.

Upper primary school mathematics question UPQ133

Hairu uses 4 square papers to create his greeting card. He formed the card as the figure below. It is by stacking 4 pieces of square paper one on top of another. The papers have different prints and sizes (of sides 3 cm, 4* *cm, 5 cm and 6 cm). The 6-cm piece is placed at the bottom of the stack, followed by the 5-cm piece, then the 4-cm piece and the 3-cm piece is placed right on top. Find the sum of the area A and B.

*Solution:*

Working out the length of the square A & B

Both square are 2 cm by 2cm

The sum of area A and B = 2 × 2 × 2 = 8cm^{2 }

^{ }

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