CIRCUMFERENCE OF A CIRCLE
- it is the distance length
of a circle around the circle.
Illustration:
Formula:
C = 2 πr
or
C = πd
where:
C = circumference
r = radius
d...
Tuesday, February 5, 2013
Monday, February 4, 2013
PRISM
PRISM
- a polyhedron of which two faces are equal polygons in parallel planes and the order faces are parallelograms.
Rectangular Prism:
- a prism whose six faces are rectangles.
Illustration:
Area Total or surface...
RHOMBUS
RHOMBUS
- a quadrilateral with all sides equal and no 900 angle.
Illustration:
where:
a = b = c = d
Formula for Area:
A = ( x*y ) / 2
where:
A = area
x = one diagonal of the rhombus
y = other...
Thursday, January 31, 2013
SPHERE
SPHERE
- a solid bounded by a closed surface every point of which is equidistant from a fixed point called the center.
Illustration:
Area of a Sphere:
A = 4 πr2
Where:
A = area
π = pi = constant = 3.1416
r...
PARALLELOGRAM
PARALLELOGRAM
- a quadrilateral in which both pairs of opposite sides are parallel.
Area = b * h
where:
b = base
h = height
Illustration of a parallelogram:
Problem:
1. A shape in the form of a parallelogram...
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