Which polyhedron has more faces than an octahedron but fewer faces than an icosahedron? a. hexahedron b. cube c. tetrahedron d. dodecahedron

Option D is correct.

Step-by-step explanation:

Polyhedron is a solid figure which is entirely made up of polygons.

Octahedron is a polyhedron with eight faces.

Icosahedron is a polyhedron with twenty faces.

Hexahedron is a polyhedron with six faces.

Tetrahedron is a polyhedron with four faces.

Dodecahedron is polyhedron with twelve faces.

Cube is a Hexahedron.

To find: A polyhedron which has more than 8 faces and less than 20 faces.

So, From given Option only Dodecahedron has more than 12 faces and less than 20 faces.

Therefore, Option D is correct.

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

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step-by-step explanation: