By: Grace W.
Section 1 - Areas of Parallelograms and Trapezoids
*Height of a parallelogram - the perpendicular distance between the base.
*Base of a trapezoid - are two parallel sides.
*Height of a trapezoid - the perpendicular distance between the bases.
Trapezoid - A=1/2 (b1+b2)h
Section 2 - Areas of Circles
Circle- The set of all points in a plane that are the same distance, called the radius, from a fixed point called the center.
Radius- The distance between the center and any point on the circle
Diameter- The distance across the circle through the center point.
Circumference- The distance of a circle.
Pi- The ratio of the circumference of a circle to its diameter.
Section 3 - Three-Dimensional Figures
Section 4- Surface Areas of Prisms and Cylinder
Face - A polygon that is a side of the polyhedron.
Polyhedron- A solid that is enclosed by polygons.
Prism - A solid, formed by polygons, that has two congruent bases lying in parallel planes.
Pyramid- A solid formed by polygons, that has one base. The base can be any polygon, and the other faces are triangles.
Cylinder- A solid with two congruent circular bases that lie in parallel plane.
Cone- A solid with one circular base.
Sphere- A solid formed by all points in space that are the same distance from a fixed point called the center.
Edge- A line segment where two faces of a polyhedron meet.
Vertices- A point at which three or more edges of a polyhedron meet.
Net-is a two dimensional pattern that forms a solid when it is folded
voulme of a prism-V=Bh
volume of a cylinder-v=Bh---3.14(r^2)h
Surface Area of a prism-S=2B+Ph
Surface Area of a cylinder-2(3.14)r^2+2(3.14)rh
Surface area of cone-S=3.14(r^2)+3.14(rl)
Volume of a pyramid-V=1/3 BH
Volume of a sphere-V=4/3 PI r^3
Surface area of a cylinder- s=2b+ch=2PIr^2=2PIrh