No.
A right-angled triangle can have equal sides, but does not have to. A right-angled triangle with two equal sides CANNOT be an equilateral triangle. A right-angled triangle cannot be an equilateral triangle.Divide a square along the diagonal, and you are left with two right-angled triangles with two sides of equal length.
Inside: acute angled triangleOn: right angled triangle Outside: obtuse angled triangle.
how to find the perimeter of a right angled triangle using the area
I am guessing you mean a right angled triangle. The hypotenuse is the longest side on a right angled triangle. So it is the side facing / parallel to the right angle.
Yes.
No. A regular polygon has all sides equal and all angles equal. Neither of those properties can be true of a right triangle. A regular triangle is an 'equilateral one'. Its sides are equal, and each of its angles is 60 degrees.
Any polygon can have a right angle. A right angled triangle is an example.
Any polygon can have at least one right angled - for example a right angled triangle. An example of an irregular polygon with only right angles is a rectangle.
Yes, as for example a square is a regular polygon that has 4 right angles.
An isosceles right angled triangle.
A regular triangle would have all angles equal, each being 60o. Thus a right angled triangle is an "irregular" triangle in that one of its angles is 90o which is not 60o.
no it isnt
Any polygon can have one right angle, for example, a right angled triangle.
No, but an equilateral triangle is a regular polygon with 3 equal sides and 3 equal angles.
Any polygon can have just one right angle, from a right angled triangle upwards.
its just called a right triangle. one angle is 90 degrees and two other angles are 1-89 degrees.
An acute angled triangle, right angled triangle or obtuse angled triangle.