Transcript Welcome to RSP Math

Welcome to
RSP Math
Mrs.Muljodiredjo
Objective:
 Student will be able to use formula
routinely for finding the perimeter and
area of basic two-dimensional figures
including rectangles, parallelograms,
trapezoids, squares, triangles, circles.
TWO DIMENSIONAL FIGURES
RECTANGLE
PARALLELOGRAM
SQUARE
TRIANGLE
TRAPEZOID
CIRCLE
Definitions:
 Rectangle is a parallelogram with four
right angles.
 Parralelogram is a four sided shape with
two pairs of parallel sides.
 Trapezoid is a quadrilateral with one pair
of parallel sides.
AREAS of PARALLELOGRAM
= base x height (b x h)
A Parallelogram is a quadrilateral with two pairs of parallel sides
height
base
height
base
height
base
SQUARES and RECTANGLES ARE PARALLELOGRAMS
Area and Perimeter:
 Area is the number of
squares inside the shape.
To find the area of the
shapes, use the formulas
for each shape.
 Perimeter is the distance
around the shapes. To
find the perimeter of the
shapes, add all sides.
AREA of TRAPEZOID:
½(b1 +b2)h
b2
height
height
base
AREA of TRIANGLE:
base x height = bh
2
2
h
b1
AREA OF A CIRCLE
d
I
a
m
e
t
e
r
D = diameter
R = radius
π = 3.14
D=2r
radius
2
AREA = πr
CIRCUMFERENCE =
2πr
OR
πd
Definitions:
 Circumference is the distance
around the circle. It is another
word for perimeter.
 Area is the number of squares
inside the circle.