Number of right-angled triangles formed by joining the vertices of 1 face of the cuboid = 4 Number of right-angled triangles formed by joining the vertices of 6 faces of the cuboid =4×6=24
Number of right-angled triangles formed by joining the vertices and 1 diagonal of the cuboid = 2 Number of right-angled triangles formed by joining the vertices and 1 diagonal of the cuboid =2×4=8 Therefore, number of right-angled triangles formed by joining the vertices of a cuboid =24+8=32