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An octahedron and its net are shown below. All the faces are the same size and shape. What
is the surface area of the octahedron?
1,152 cm2
10.4 cm
576 cm2
A
499.2 cm?
12 cm
998.4 cm2
12 cm
12 cm

An octahedron and its net are shown below All the faces are the same size and shape What is the surface area of the octahedron 1152 cm2 104 cm 576 cm2 A 4992 cm class=

Respuesta :

SDCInfinity

Answer:

499.2 cm²

Step-by-step explanation:

First, find the area of a triangle.

A = 1/2bh

A = 1/2(12)(10.4)

A = 62.4

Then, take that answer and multiply it by the number of faces. In this problem, there are 8.

62.4 × 8 = 499.2