Question

In the right angled triangle ABC, $\angle B= 90?$, A= (2, 5, 1), B = (1, 4, -3) and C = (-2, 7, -3). If P, S, R are the orthocentre, circumcentre, circumradius of the triangle ABC then $R + P_y =$

• A. 7
• B. 10
• C. 8
• D. 13

Answer 1

Answer: (A)

7

Answer 2

Ortho centre = P = B and $R = \frac{AC}{2}$