A regular octagon.
Octagon.
You can find out how many angles are in a shape by counting how many edges a shape has. for instance.. a square has 4 edges so it has 4 angles
square
hexagon and octagon.
Any shape with straight edges can have perpendicular edges.
a Rhombus...
A rhombus is one of them
a circleA pedantic edit:Also an ellipse or a wriggly loop.Any shape that has no straight edges is described as a curvilinear shape.
A rectangle book has a rectangular shape, with four straight sides and four right angles.
Every shape that is round does not have edges. A shape that has sharp points and has straight lines can have edges.
A sphere!
A regular tetrahedron (an equilateral triangular pyramid).