bell ringer 3-26-19 1. What shape is the base of a cube? Sides? 2. What shape is the base of a rectangular prism? Sides? 3. What shape is the base of a triangular prism? Sides? 4. What shape is the base of a cylinder? Sides? 5. What shape is the base of a pyramid? Sides? 6. What shape is the base of a cone? 7. How do you determine surface area?

Volume of Solids and Composites Tuesday, March 26, 2019

volume formulas (make sure they are included in your NOTEBOOK) Cubes, Prisms, and Cylinders  V= Bh Cones and Pyramids  V = 1 3 Bh Spheres  4 3 𝜋𝑟3

(Make sure these are in your Notebook) But what’s the “B”??? (Use an “A”.) The formula you use for the “B” (area of the base) depends on which figure is your base. (Make sure these are in your Notebook) Circle  A = 𝜋𝑟2 Parallelogram  A = bh Square  A = s2 Triangle  1 2 bh Rectangle  A = lw Trapezoid  A = 1 2 (b1 + b2)h

Examples (Include in notebook)

What’s a composite solid? A composite solid is made up of two or more solids .

Examples If combined, find the volume of each piece and add them together. If it’s a solid with another solid removed, subtract the volume. Examples to include in your Notebook

classwork - if it asks for surface area, only find the volume. Geometry Textbook: p. 733 #44 p. 756 #23-27 p. 734 #48-49 p. 763 #27-29 p. 739 #32-34 p. 778 #6 p. 748 #34-37 p. 779 #13 Homework – Volume of composites

exit ticket 1. What is a composite solid? 2. When dealing with composites, when do you add and when do you subtract?