composite shapes what is your favorite song?... a song is an example of a composition. it is...
TRANSCRIPT
Composite
Shapes
What is your favorite song?...
A song is an example of a composition.
It is composed of drums, guitar, singing, and perhaps some hip hop record scratching….
How does a musician compose a song?
drums piano vocal guitar
Engineers, architects, and graphic designers are composers as well.
Instead of using instruments, they use simple geometric shapes to construct everything from bridges, to air planes, to video games….
Skateparks
All composite shapes can be broken down into a collection of
simple shapes
Do not copy this page down.
Composite shapes are used all the time in art and graphic design.
Video game design..
Superheros…
How would you divide this shape up?
A rectangle and 2 semi-circles
Atotal = A1 + A2 + A3
A1 A2
A3
Atotal = A1 + A2 + A3
A1
A2
A3
How?
Atotal = A1 - A2
A1
A2
1. Find the area:
10 cm
2 cm
7 cm
10 cm
3 cm
12 cm
A = A1 + A2
A1
A2 = 10x2 + 10x3
= 20 + 30
= 50 cm2
2. Find the area of the grey region
10cm
3
A = r2
Ay = A1 - A2
Ay = (10)2 - (3)2
A1
A2
Ay = 100 - 9
Ay = 285.7 cm2
Complete the
10 composite shapes activity.
Include
1. Diagram
2. Steps
3. Circled answer