Geometric/Measurement
Geometric Figures
Prisms: a prism is a polyhedron in which two congruent faces "the bases" lie in parallel planes and the other faces (lateral faces) are bounded by parallelograms
Hexagonal oblique prism
Triangular Right Prism
Quadrilateral Right Prism
Hexagonal Right Prism
Right Pyramids:
Triangular Pyramid
Square Pyramid
Cylinders: A simple closed surface that is not a polyhedron
Cones: The union of the line segments connecting a point P with each point of a simple, closed curve, the simple, closed curve in the interior of the group
Classifications of Polygons:
Polygon: all sides are congruent and all angles are congruent
Right triangle: a triangle in which all the angles are acute.
Acute triangle: a triangle in which all the angles are acute
Obtuse triangle: a triangle containing one obtuse angle
Scalene triangle: triangle with no congruent sides
Isosceles triangle: a triangle with at least two congruent sides.
Kitequadrilateral with two adjacent sides congruent and the other two sides are also congruent.
Trapezoid: a quadrilateral with at least one pair of parallel sides.
Isosceles trapezoid: a trapezoid with congruent base angles.
Parallelogram: a quadrilateral in which each pair of opposite sides are parallel.
Rectangle: a parallelogram with a right angle.
Supplementary: the sum of the measure of two angles is 180 Complimentary angles: the sum of the measures of two complementary angles is 90 degrees Congruent angles: all angles are the same Vertical angles: a pair of angles whose sides are two pairs of opposite rays Corresponding angles: have the same angle measures in degrees Classification of angles: types of angles include acute, obtuse, right and straight angle. Angles can also be adjacent or vertical Angle: a figure formed by two rays
Area and Perimeter
Length=8 Width=4 LW=32cm2
Base=2 Height=5 BH=10u2
Base=4 Height=5 BH1/2=10u2
Base1=3 Base2=5 Height=4 1/2(b1+b2)h=16u2
Radius=R
Diameter=D
Pi=3.14
D=6 Pi=3.14 C=18.84u
R=3 Pi=3.14 A=28.26u2
Surface Area
Surface area of Prism
2(base x height) + 2(length x base) + 2(length x height)
When doing a triangular prism it is half of the formula
Surface area of Cylinder
2πr² + 2πrh
When sliced you must add the surface area
of the side it is sliced on
Surface area of pyramid
area of base x 2(base x slanted height)
Surface area of Cone
πr² + πrs<slanted height
Surface area of sphere
4πr²
for a hemisphere you must add the face it looks sliced on
Pythagorean Theorem
a² + b² = c²
Only works for right triangles
Atleast one angle must be 90 degrees
If.. a² + b² ≠ c² then it is not a right triangle
and pythagorean thereom does not work
Volume
Volume of a Prism
Surface area of base x height
Volume of a Triangular Prism
½(surface area of base x height)
Volume of a Pyramid
⅓(surface area of base x height)
Volume of a Cone
⅓ (πr² x height)
Volume of a Cylinder
πr² x height
Volume of a Sphere
4/3(πr³)