Cross Sections SWBAT Describe the twodimensional figures that

+ Cross Sections SWBAT: Describe the two-dimensional figures that result from slicing threedimensional figures, as in plane sections of right rectangular prisms, right rectangular pyramids, cylinders, cones, and spheres.

a prism, and at times in cylinders the shape is made by + n In stacking several figures on top of each other that are ________. Similar n If you stacked the same shape as the base, except that it is a little smaller n each time until they reached a point at the top, you will create what is known as a_______. Pyramid n These pyramids are named according to the shape of their_________ Base When we think of pyramids we think of the Great Pyramids of Egypt. They are actually Square Pyramids, because their base is a Square.

+ Cross Sections A slice of any 3 dimensional figure with a Cross Section plane creates a _____ Cross sections are either taken Parallel Perpendicular _______ or ______ to the base, but they can also be taken at Diagonal a_______.

+ Types of Cross Sections: If a shape is cut parallel, then the cross section looks just like the base. (Think a stack of cheese or a stack of CDs) If a shape is cut perpendicular to the base, then the cross section looks just like the lateral face. If the shape is cut diagonally, the cross section looks like a stretched out base.