**Question**

**Solution 1**

Width of
the smaller square

*WX*= (156 ¸ 4) cm = 39 cm
Width of
the larger square

*AB*= (39 + 2´8) cm = 55 cm
Area = (55

^{2}– 39^{2}) cm^{2}= 1504 cm^{2}**Ans:**(1)

**Solution 2**

This is a Multiple
Choice Question (MCQ).

*Observe*that the shaded area is an even number, because it is 8 cm width all around. Since 1504 is the only even number among the options, (1) is the correct choice.**Remark**

No tedious calculation
is needed!

H02. Use a diagram / model

H04. Look for pattern(s)

H09. Restate the problem in
another way

H10. Simplify the problem

H11. Solve part of the problem

**Suitable Levels**

*****Primary School Mathematics

* other syllabuses that involve areas and perimeters

* anyone who loves his/her brain tickled

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