5. Pythagoras' Theorem and Measurement
Interactive practice questions
The diagram shows a sector of a circle of radius $4$4 units, formed from an angle of size $180^\circ$180°.
Find the exact length of the arc. Do not round your answer.
Easy
2min
The diagram shows a sector of a circle of radius $4$4 units, formed from an angle of size $135^\circ$135°.
Find the length of the arc rounded to two decimal places.
Easy
2min
The diagram shows a sector of a circle of diameter $14$14 units, formed from an angle of size $15^\circ$15°.
Find the exact length of the arc.
Easy
1min
The diagram shows a sector of a circle of radius $6.5$6.5 m, formed from an angle of size $55^\circ$55°.
Find the exact length of the arc.
Medium
2min
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