Question

HELP! Distance and Midpoint Formulas:
could someone help me with this? I know its not hard, but I'm really bad at maths:
http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/a/unit03/resources/docs/DistanceMidpointFormulas_WritingAssignment.pdf

Answer 1

Do you know the distance formula?

Answer 2

To refresh your memory:\[d=\sqrt{(x _{1}-x _{2})^{2}+(y _{1}-y _{2})^{2}}\]

Answer 3

Plug in the x&y 1&2 values and solve. let me know what your get so we can verify.

Answer 4

for the problem 2. It is about the same except two of the sides can be solved by inspection. Side BC is 6 units long as it is at y=2 and the x difference is +3 - (-3) = 6
Side AB is 4 units long. Perimeter is the sum of the three sides, two sides were just shown to you, the third side is worked using the distance formula.