i don't think that's possible
No REGULAR polygon can have three right angles in it. Any polygon with five or more sides CAN have three right angles, as long as it's not regular.
a pentagon
All polygons can have right angles except for circle and ovulated shapes. The only 'regular polygon' that has a right angle is the quadrilateral.
Interior angles of n-sided polygon total (2n - 4) right angles or 180n - 360 degrees.
Interior angles of n-sided polygon total (2n - 4) right angles or 180n - 360 degrees.
An irregular pentagon is a polygon that has five sides and two right angles. A regular polygon on the other hand does not have right angles.
Any polygon with at least 7 sides CAN have 5 right angles.
A polygon with five angles and five sides is a pentagon.
No REGULAR polygon can have three right angles in it. Any polygon with five or more sides CAN have three right angles, as long as it's not regular.
a pentagon
a house
A pentagon. an irregular pentagon?
A pentagon has five sides and angles.
a pentagon has five sides and five angles.
It has no particular name but it looks like a house.
Pentagon
A polygon with five sides and five angles is called a pentagon.