Respuesta :
the answer is either 14.5 * 8 or 14.5 * 10 , because a decagon can have 8 triangles of unequal size or 10 triangles of equal size.
Area of the regular decagon with 8 triangles of unequal size is 116 (or) Area of the regular decagon with 10 triangles of equal size is 145.
What is a decagon?
"A decagon is a polygon with 10 equal sides. Decagon have 8 triangles of unequal size or 10 triangles of equal size. It also has ten vertices - which is where the sides meet - and ten angles."
What is a triangle?
"Triangles are the type of polygons, which have three sides and three vertices. This is a two-dimensional figure with three straight sides."
Given
Area of triangle = 14.5 square inches
We know that
Decagon have 8 triangles of unequal size or 10 triangles of equal size.
Area of the regular decagon with 8 triangles of unequal size
= 14.5 × 8
= 116
(or)
Area of the regular decagon with 10 triangles of equal size
= 14.5 × 10
= 145
Hence, Area of the regular decagon with 8 triangles of unequal size is 116 (or) Area of the regular decagon with 10 triangles of equal size is 145.
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