EASY
AS and A Level
IMPORTANT
Earn 100

Robert is told the size of angle BAC in degrees and he is then asked to calculate the length of the line BC. He uses his calculator but forgets that his calculator is in radian mode. Luckily he still manages to obtain the correct answer. Given that angle BAC is between 10° and 15°, Draw the graph to find the size of angle BAC, correct to 2 decimal places.

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Important Questions on Circular Measure

EASY
AS and A Level
IMPORTANT

Discuss and explain, with the aid of diagrams, the meaning of Chord.

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EASY
AS and A Level
IMPORTANT

Discuss and explain, with the aid of diagrams, the meaning of the word 

 

Arc

EASY
AS and A Level
IMPORTANT

Discuss and explain, with the aid of diagrams, the meaning of Segment

EASY
AS and A Level
IMPORTANT

Discuss and explain, with the aid of diagrams, the meaning of segment.

EASY
AS and A Level
IMPORTANT

Explain what is meant by: Minor are and major arc

EASY
AS and A Level
IMPORTANT

Explain what is meant by: Minor sector and major sector.

EASY
AS and A Level
IMPORTANT

Explain what is meant by : Minor segment and major segment.

EASY
AS and A Level
IMPORTANT

Given that the radius of a circle is r cm and that the angle subtended at the centre of the circle by the chord AB is θ°, discuss and write down an expression, in terms of r and θ, for finding the following:

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Length of minor arc AB