FREE Video Lesson Worth $20! Access 10000 Questions From P1 to P6! Access 300 Hours of Video Explanations! Video Tutorials to Tough PSLE Questions!

Or use your Email address

### Primary 6 Problem Sums/Word Problems - Try FREE

- Circles : Ace this or else... > Circles Exercise 6 > 1
- Attempting as Guest
- Attempt Mode: Attempt Single Question

**Score :**

(Single Attempt)

**Question
**

There are 4 identical small sized circles, 1 medium sized circle and a large sized circle in the figure shown here.

The radius of the large circle to the radius of the medium sized circle is 2 : 1.

The radius of the small sized circle is half that of the radius of the medium sized circle.

If the radius of the large circle is 68 cm,

(a) what is the area of the region shaded blue?

(b) what is the perimeter of the region shaded blue?

[ Take π to be 3.14 ]

*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*

The correct answer is :

**7259.68,1067.6**