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. The trunk and branches of a tree are a cylinder shape, while the many leaves have shapes of their own. The main reason I decided on a tree is because of the many angles the branches form. The last geometric object that I chose was a gazebo. The poles of a gazebo are made up of cylinders.