Question: find the lengths of the sides of the and8710pqr isandnbspand8710pqr...
Find the lengths of the sides of the PQR. Is PQR right-angled? Is PQR isosceles? P(2, −1, −0), Q(4, 1, 1) and R(4, −5, 2).
So I tried to calculate the distance between PQ QR and PR to prove they are Isosceles or right-angled triangle(by Pythagoras theorem)
by using formula
and I calculated
1st question, How do I calculate isn't Negative zero same as zero?
(assume -0 is not a typo)
= (Just going to assume 0 = -0 )
2nd question, Could you please check my calculations are correct because I don't see any values to prove that is not isosceles or Right-angled Triangle.
Please include worked solution if my approach is wrong