The sidewalk, because each slab of cement is, for the most part, in the shape of a quadrilateral. A rectangular prism because of houses, windows, doors, shelves, cabinets, and mirrors. A sphere because of sports balls. The three most geometric objects in my neighborhood are a house, tree, and gazebo. I chose a house because houses have many different shapes and angles.
Most houses are basically a cube, a rectangular solid, or a combination of both.
They have either pyramid roofs or just plain squares and rectangles. Windows can be many shapes and sizes. The windowpanes form more shapes and many right angles. Angles are all over the house. Obtuse, acute, and right angles make up the many shapes.