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Primary 6 Problem Sums/Word Problems - Try FREE
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There are 2 identical small circles, 1 medium circle and a large circle in the figure.
The diameter of the small circle is 7 cm.
The diameter of the large circle is 4 times that of the diameter of the small circle.
(a) What is the perimeter of the shaded region ?
(b) What is the area of the shaded region?
[ Take π to be `22/7` ]
Notes to students:
- If the question above has parts, (e.g. (a) and (b)), given that the answer for part (a) is 10 and the answer for part (b) is 12, give your answer as:10,12
- Round your answer off to 2 decimal places