geometry
Volume of Prisms
Volume is the amount of space an object takes up. The units of volume are cubic. To find the volume o a prism we use the formula: V = B • h *IMPORTANT* The capital “B” stands for the “area” of the base shape, and the “h” stands for the height of the prism. Example 1: Step 1: Write the … Read more
Surface Area of Prisms
Surface area is the total area of the faces of a solid figure. To find the surface area of a prism you must add the area of all of the faces of the given prism. Better yet, you can use the formula: Surface Area = 2(b•h) + 2(b•w) + 2(h•w) Example 1: Find the Surface Area of the … Read more
Area of Trapezoids
A trapezoid is a polygon with only one pair of parallel lines. To find the area of a Trapezoid we use the following formula: A = h • (b1+b2) ÷ 2 Example 1: Step 1: Write the formula A = h • (b1+b2) ÷ 2 Step 2: Substitute the variables A = 5 • (8 + 4) ÷ 2 Step … Read more
Area of Triangles
The area of a Triangle is the number of square units it takes to exactly fill the interior of a triangle. Formula for finding the area of a triangle is: A = (b • h) ÷ 2 Example 1: Step 1: Write the formula A = (b • h) ÷ 2 Step 2: Substitute the variables with the … Read more