Topics
5. Trigonometric Functions
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AustraliaAU
Year 11

5.03 Circle mensuration

Lesson
Worksheet
Practice

Interactive practice questions

Consider the sector below.

A sector of a circle is given with its radius measured as $96.4$96.4 $mm$mm. Each of the two sides of the sector has a tick mark. The angle between the two sides is a right angle as indicated by the a small square.
a

Calculate the perimeter. Give your answer correct to one decimal place.

b

Calculate the area. Give your answer correct to four decimal places.

Easy
4min

Consider the sector below.

Easy
4min

Consider the sector below.

Easy
3min

Find the perimeter of the figure shown, correct to two decimal places.

Medium
2min
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Outcomes

ACMMM031

establish and use the sine and cosine rules and the formula Area=1/2 bc sin⁡A for the area of a triangle

ACMMM033

calculate lengths of arcs and areas of sectors in circles

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