Please help me with this:)

Answer: multiply all of them by two and then put the fx2 behind the equal signs in punuations =(fx2)
Step-by-step explanation:
Answer:
16 ft²
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )
here b = 8 and h = 4, thus
A = 0.5 × 8 × 4 = 16 ft²