Post on 28-Dec-2015
The The area of a rectanglearea of a rectangle equals its equals its lengthlength times times the the widthwidth ( (basebase times times thethe heightheight))..
A = length x width = lw
or
A = base x height = bh
Area of a RectangleArea of a Rectangle
The The perimeter of a rectangleperimeter of a rectangle equals the equals the sum of its length and width multiplied sum of its length and width multiplied by two.by two.
2( )P l w Perimeter of a RectanglePerimeter of a Rectangle
The The perimeterperimeter of a of a squaresquare equals equals 4 times4 times the length of a the length of a sideside..
4P sPerimeter of a SquarePerimeter of a Square
The The area of a parallelogramarea of a parallelogram equals the equals the product product of its of its basebase ( (bb) and ) and heightheight ( (hh)). The base and . The base and height must form a height must form a right angleright angle (90 (90º).º).
A bh
Area of a ParallelogramArea of a Parallelogram
The The area of a trianglearea of a triangle equals equals halfhalf of the of the product of product of basebase ( (bb) and ) and heightheight ( (hh)). Its base . Its base and height must form a and height must form a right angleright angle (90 (90°).°).
1
2A bh
Area of a TriangleArea of a Triangle
Surface area is the total area of the surfaces of Surface area is the total area of the surfaces of a solid figure.a solid figure.
Surface area is measured in square units Surface area is measured in square units ( )( )2units
Top
Right
Front
Surface AreaSurface Area
FRONT
RIGHT SIDE
LEFT SIDE
TOPBACK
BOTTOM
Surface Area – Rectangular PrismSurface Area – Rectangular Prism
TOP is congruent to TOP is congruent to BOTTOMBOTTOM
RIGHT is congruent to LEFTRIGHT is congruent to LEFT FRONT is congruent to BACKFRONT is congruent to BACK
Surface Area – Rectangular PrismSurface Area – Rectangular Prism
FaceFace LengthLength WidthWidth AreaArea
toptop 4 4 cmcm 8 8 cmcm 32 32 sq.sq. cmcm
bottombottom 4 4 cmcm 8 8 cmcm 32 32 sq. cmsq. cm
frontfront 8 8 cmcm 6 6 cmcm 48 48 sq. cmsq. cm
backback 8 8 cmcm 6 6 cmcm 48 48 sq. cmsq. cm
leftleft 4 4 cmcm 6 6 cmcm 24 24 sq. cmsq. cm
rightright 4 4 cmcm 6 6 cmcm 24 24 sq. cmsq. cm
sumsum 208 208 sq. cmsq. cm
8 cm
6 cm
4 cm
Surface Area – Rectangular PrismSurface Area – Rectangular Prism
height (h)
width (w)
length (l)
Formula for Surface Area of Rectangular Prism
Area = 2(lw + lh + wh)
Surface Area – Rectangular PrismSurface Area – Rectangular Prism
Side
Surface Area of a Cube = 6 x side²
Surface Area of a Cube = 6s²
Surface Area – CubeSurface Area – Cube
6 5 inches x 5 inches)
6 x 25 square inches
=150 square inches
Surface Area x
5 inches
Surface Area – CubeSurface Area – Cube
Volume is the measurement of the Volume is the measurement of the number of cubic units ( ) that make number of cubic units ( ) that make up a solid figure.up a solid figure.
Volume measures how much room a Volume measures how much room a solid figure takes up in space.solid figure takes up in space.
Volume also measures how much room Volume also measures how much room is in a solid figure (capacity).is in a solid figure (capacity).
3units
Volume – Rectangular PrismVolume – Rectangular Prism
V lwhThe The volume of a rectangular prismvolume of a rectangular prism
equals its equals its length timeslength times width times width times heightheight..
VolumeVolume = = lengthlength x x widthwidth x x heightheight
Volume – Rectangular PrismVolume – Rectangular Prism
LENGTH
WIDTH
HEIGHT
Volume length x width x height
V l x w x h
V lwh
Volume – Rectangular PrismVolume – Rectangular Prism