Given the points

MATHEMATICS · Single correct · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

Given the points

A(1,2,3)

B(4,2,7)

and

C(1,6,3)

, at which vertex is

\triangle ABC

right-angled? (a)

C

(b) The triangle is not right-angled (c)

A

(d)

B

Related theory

Dot Product
Vectors
Scalar product
Vector Algebra
Dot product of two vectors
Vector Operations

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