How many right angles altogether are there in all the faces of a cuboid?
A cuboid has 6 faces, each of which is a rectangle. A rectangle has 4 right angles. Therefore, each face of the cuboid has 4 right angles. To find the total number of right angles in all the faces of the cuboid, you would multiply the number of right angles per face (4) by the number of faces (6), resulting in a total of 24 right angles in all the faces of a cuboid.