Answer:
The total area of the shape is [tex]120\ cm^{2}[/tex]
Step-by-step explanation:
step 1
Find the area of one right triangle
The area of a triangle is equal to
[tex]A=\frac{1}{2}(b)(h)[/tex]
we have
[tex]b=4\ cm[/tex]
[tex]h=5\ cm[/tex]
substitute
[tex]A=\frac{1}{2}(4)(5)=10\ cm^{2}[/tex]
step 2
To find the total area of the shape multiply the area of one triangle by 12
so
[tex]A=12(10)=120\ cm^{2}[/tex]
