It depends on how they are classified. They can have 1 to 4 acute angles, they can have 1 to 4 right angles, they can have 1 to 5 obtuse angles. The individual values of the angles will generate different pentagons. They can be regular or irregular. They can be convex or concave.
All pentagons have five sides.
Yes providing that they are regular 5 sided pentagons otherwise no if they are irregular pentagons
Pentagons
Regular pentagons do.
No, pentagons to not have right angles.
no, pentagons don't have parallel sides or right angles.
It depends on how they are classified. They can have 1 to 4 acute angles, they can have 1 to 4 right angles, they can have 1 to 5 obtuse angles. The individual values of the angles will generate different pentagons. They can be regular or irregular. They can be convex or concave.
Planar figures
All pentagons have five sides.
Yes there are two different pentagons with two right angles next to each other and more with 2 right angles not next to each other.
Yes providing that they are regular 5 sided pentagons otherwise no if they are irregular pentagons
Pentagons in normal (Euclidean) geometry can have at most three right angles, and the other two will be obtuse.However, in hyperbolic geometry, it is possible to construct a pentagon with 5 right angles, which is called a rectapentagon.
Pentagons
No, it is true of all pentagons.
Regular pentagons do.
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