Use the distance formula for finding points on the xy-plane.
Let d = distance.
d = sqrt{(x2 - x1)^2 + (y2 - y1)^2}
You must apply the above formula to find the distance between points A and B, B and C and A and C.
So, you must apply the distance formula 3 times.
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A is the point (1,2), B is (7,4) and C is (5,6). Calculate the length of each side of the triangle ABC.
2 answers
emm nope i don't get it, sorry, can you do this using pythagoras??