A pyramid does not need to have any equal sides. A REGULAR pyramid has as many equal sides as the number of sides on the base. So, a triangular pyramid (tetrahedron) will have 3 equal faces, a square based pyramid will have 4, etc.
A regular polygon has equal sides and angles. A polygon has a surface area but a polyhedron has many faces as for example a pyramid.
5 equal sides
A regular pentagon has 5 equal sides.
A regular decagon has 10 equal sides.
A pyramid does not need to have any equal sides. A REGULAR pyramid has as many equal sides as the number of sides on the base. So, a triangular pyramid (tetrahedron) will have 3 equal faces, a square based pyramid will have 4, etc.
A regular polygon has equal sides and angles. A polygon has a surface area but a polyhedron has many faces as for example a pyramid.
a regular or scalene triangle has no equal sides
5 equal sides
A regular pentagon has 5 equal sides.
A regular decagon has 10 equal sides.
a regular pentagon has five sides. The word regular means equal
A solid figure with many sides such as a pyramid
5
3 or more sides of equal lengths
A regular heptagon has seven equal sides.
6 sides and it is a regular hexagon