Question

Q14. Let OABC be a tetrahedron such that the edges on, op and oc are mutually perpendicular Let the area of the triangles a OABA OBC and A OAC be 3,4 and 5 sa
units respectively Then the area of A ABC is​

Answer 1

AB,AC,AD are mutually perpendicular

area of ΔABC=∣AB∣∣AC∣=6

area of ΔACD=∣AC∣∣AD∣=8

area of ΔADB=∣AB∣∣AD∣=10