With the information given it is not possible.
Does 24 ft refer to a length of a side, the longest side, the shortest side, a diagonal, an apothem? Knowing the answer to that question can only help if the decagon is regular - and on the basis of the question, there is no reason to assume regularity.
A decagon can have eight or more triangles - up to infinitely many.
The 10 interior angles of a decagon add up to 1440 degrees
A decagon is a 10 sided polygon Exterior angles add up to 360 degrees Interior angles add up to 1440 degrees It has 35 diagonal A decagon can have a regular or an irregular shape
DECAGON
A decagon is a 10 sided polygon. Exterior degrees total 360 Interior degrees total 1440
A decagon can have eight or more triangles - up to infinitely many.
The 10 interior angles of a decagon add up to 1440 degrees
A decagon is a 10 sided polygon Exterior angles add up to 360 degrees Interior angles add up to 1440 degrees It has 35 diagonal A decagon can have a regular or an irregular shape
The 10 interior angles of a decagon add up to 1440 degrees
A decagon is a 10 sided polygon whose 10 interior angles add up to 1440 degrees
The interior angles of a 10 sided decagon add up to 1440 degrees.
1440
There need not be any but there can be any number up to ten.
The interior angle of a 10 sided decagon add up to 1440 degrees
Interior angles add up to 1440 degrees Each interior angle of a regular decagon measures 144 degrees
DECAGON
A regular 10 sided decagon has 10 equal interior obtuse angles of 144 degrees that add up to 1440 degrees