This blog is managed by Song Hock Chye, author of Improve Your Thinking Skills in Maths (P1-P3 series), which is published and distributed by EPH.

Friday, September 25, 2009

Rosyth Sch 2007 PSLE Math Prelim Q42

Find the area of the figure.



Answer: 196 square cm

3 comments:

Siddharth said...

This can be worked in a simpler way. The area of the figure is just the area of a square of sides 14 cm. The bottom figures can be split into four and two of them can be moved up to form a square. so area is 14X14 = 196 sq cm.

Anonymous said...

agreed

Anonymous said...

Poorly set question. required the student to assume that the 2 fillet is 7cm long from the vertical tangent of the circle. in pratical this picture can be drawn with the fillet 6.9cm to 7.1cm.