Home › CBSE Class 11 (Commerce) › Mathematics › Introduction to Three-dimensional Geometry › The length PR for P(-2, 3, 5) and R(7, 0, -1) is
The length PR for P(-2, 3, 5) and R(7, 0, -1) is
A3 root 14
B2 root 14
C4 root 14
D5 root 14
Answer & Solution
Correct answer: A. 3 root 14
The squared differences 81 + 9 + 36 = 126, and root 126 = 3 root 14.
Related questions
Geometry was first extended beyond three dimensions around which time?Who introduced the three coordinate planes now in use, in a 1715 letter to Leibnitz?Which mathematician took up three dimensional coordinate geometry systematically in 1748?Who first gave a systematic development of analytical solid geometry in 1700?Who is called the father of analytical geometry?Two points differ only in z: (1, 2, 3) and (1, 2, 7). Their distance isThe plane determined by the x-axis and y-axis together is called theGiven P(2, 4, 5), the foot F of P on the ZX-plane has coordinates