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# Calculate the perimeter of a sector of a circle of radius 9cm…

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## Calculate the perimeter of a sector of a circle of radius 9cm and angle 36°

• A. 18cm
• B. (18 + 9π/5) cm
• C. (9 + 9π/5) cm
• D. 9π/5 cm

B

## SOLUTION…

The of any is the total length of all the sides of the shape. That is, assuming a shape is stretched to form a straight line, the length of this line is called the perimeter of the shape.

### Now for the right answer to the above question:

1. Option A is incorrect.
2. Option B is correct.
3. C is incorrect.
4. D is not the correct answer.
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### QUICK TIPS…

• Always remember that the perimeter of any shape is the total length of its outline.

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/ culled from 2016 -UTME mathematics past question 24 /

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### Stay updated with our latest Secrets and Answers  1. 0 Votes 0 Votes 0 Votes

Why does the right answer look originally suspicious?

2. 0 Votes 0 Votes 0 Votes

why does the right answer look originally suspicious?

3. 0 Votes 0 Votes 0 Votes

That means perimeter has unique formula for different shapes.

4. 0 Votes 0 Votes 0 Votes

perimeter clearly is the total length of a shapes outline.

5. 0 Votes 0 Votes 0 Votes

the right answer looks originally suspicious…