The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can acquire the skill of dealing with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on Shape and Area.

You can read posting **Sarin learns Perimeter, Area and Volume in school (Math Concept) **to learn the concept of area.

Read also the posting on **Sarin learns Shapes and Solids in school (Math Concept)** to know about shapes.

*Challenge yourself with the question before look out for the given solution‼!*

**Upper primary school mathematics question UPQ504**

The figure below shows two identical right-angled triangles overlapping each other. Find the area of the blue region.

Solution:

The two triangles are identical,

The yellow region is overlapping and same in area/size

Therefore,

** **The area of blue region is equal to the white region

The area of the blue region = 9 × 6 + ½ × 3 × 6 = 63 cm^{2}

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