This document provides formulas for calculating the areas and volumes of basic geometric shapes including circles, parallelograms, triangles, rectangles, trapezoids, squares, rectangular prisms, cylinders, triangular prisms, and the Pythagorean theorem. It lists the area formulas for circles using pi * radius squared, parallelograms using base * height, triangles using base * height / 2, rectangles using length * width, and trapezoids using (base 1 + base 2) * height / 2. It also provides the surface area formula for rectangular prisms using 2 * (length * width + length * height + width * height) and volume formulas for rectangular prisms using length * width * height and cylinders

1. Geometry By dakg8m

2. Lets Review!

3. Circle (pie x radius squared) pie=3.14

4. Parallelogram Area of a parallelogram= bh (base x height)

5. Triangle Area of a triangle= bh÷2 (base x height ÷ by 2)

6. Rectangle Area of a rectangle= l x w (length x width)

7. Trapezoid Area of a trapezoid= (b1 + b2)h÷2 (base one + base two x height ÷ by 2)

8. Area of a square= b² or lw (base squared or length x width) Square

9. Rectangular Prism Surface area of a rectangular prism= 2(lw+lh+wh) (length x width + length x height + width x height)

10. Volume volume= l x w x h (length x width x height)

11. volume of a cylinder= πr²h (pie x radius squared x height) pie= 3.14

12. Triangular prism Volume of triangular prism find the volume of the three rectangles on the sides then find the area of the triangle on top x 2 and then add them together.

13. Pythagorean Theorem formula a²+b²=c²