**Q1: **

A straight line passes through the two points and , and a straight line passes through the two points and . Find the size of the angle between the two lines, giving your answer to two decimal places if necessary.

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**Q2: **

A straight line passes through the two points and , and a straight line passes through the two points and . Find the size of the angle between the two lines, giving your answer to two decimal places if necessary.

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**Q3: **

A straight line passes through the two points and , and a straight line passes through the two points and . Find the size of the angle between the two lines, giving your answer to two decimal places if necessary.

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**Q4: **

Determine, to the nearest second, the size of the angle between the two lines that have direction ratios of and .

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**Q5: **

Determine, to the nearest second, the size of the angle between the two lines that have direction ratios of and .

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**Q6: **

Determine, to the nearest second, the size of the angle between the two lines that have direction ratios of and .

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**Q7: **

Find the size of the angle between the straight line , and the straight line , .

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**Q8: **

Find, to the nearest second, the size of the angle between the straight line and the positive direction of the -axis.

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**Q9: **

Find, to the nearest second, the size of the angle between the straight line and the positive direction of the -axis.

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**Q10: **

Find, to the nearest second, the size of the angle between the straight line and the positive direction of the -axis.

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**Q11: **

Find, to the nearest second, the size of the angle between the two straight lines and .

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**Q12: **

Find, to the nearest second, the size of the angle between the two straight lines and .

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**Q13: **

Find, to the nearest second, the size of the angle between the two straight lines and .

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**Q14: **

Find the value of approximated to the nearest hundredth.

**Q15: **

Find the value of approximated to the nearest hundredth.

**Q16: **

Find the value of approximated to the nearest hundredth.