540 degrees.
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A 5-sided 2-dimensional figure is a pentagon and a 5-sided 3-dimensional shape is a pentahedron.
It has 540 degrees because a five sided polygon has three triangles in it, and sinnce a triangle equals 180 degrees, 3 x 180= 540.
Pentagon is a 5 sided figure. Pent=5 gon=shape
180(5-2)=180x3 degrees 540 degrees
A 5 sided shape with 5 angles is a pentagon