Answer:
The area of the smaller triangle is [tex]50cm^2[/tex]
Step-by-step explanation:
The given length of the bigger triangle is [tex]64cm[/tex].
The length of the smaller triangle that corresponds to this side is [tex]16cm[/tex].
We can see that the scale factor for this enlargement (reduction) is [tex]k=\frac{1}{4}[/tex].
The scale factor for the area is [tex]k^2=\frac{1}{16}[/tex].
Therefore to obtain the area of the smaller triangle, we need to multiply the area of the bigger triangle by [tex]\frac{1}{16}[/tex].
This implies that,
[tex]Area\:of\:smaller\:triangle=\frac{1}{16}\times 800cm^2[/tex]
[tex]Area\:of\:smaller\:triangle=50cm^2[/tex]
The correct answer is B