**Q2: **

Given that point is the midpoint of and that , what are the coordinates of ?

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**Q3: **

Given that point is the midpoint of and that , what are the coordinates of ?

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- D

**Q4: **

Given that point is the midpoint of and that , what are the coordinates of ?

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- D

**Q5: **

Determine, to the nearest hundredth, the perimeter of the triangle formed by joining the midpoints of the sides of , given that the coordinates of , , and are , , and , respectively.

**Q6: **

**Q7: **

Given that the midpoint of lies in the -plane, and the coordinates of and are and , respectively, determine the value of .

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**Q8: **

Given that the midpoint of lies in the -plane, and the coordinates of and are and , respectively, determine the value of .

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**Q9: **

Given that the midpoint of lies in the -plane, and the coordinates of and are and , respectively, determine the value of .

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