Answer:
10
Step-by-step explanation:
Area of a triangle is
A = [tex]\frac{1}{2}[/tex]bh
A = [tex]\frac{1}{2}[/tex] 5 x 4
A = [tex]\frac{1}{2}[/tex] 20
A = 10
For the second image you find the area of the poster
5 x 3 = 15
15 ÷ $2 = 7.5 = $7.50
Sorry if its wrong
