The area of the base of the smaller prism, rectangle ABCD is 1.26 cm²
What is a prism?
A prism is known to be a kind of shape that is 3-dimensional in nature and it is one that has two similar shapes facing one another.
Note that to solve this, it will be:
[tex]\frac{AB}{4.2}[/tex] = [tex]\frac{BC}{2.7}[/tex] = [tex]\frac{2.1}{6.3}[/tex] = 1.3cm
[tex]\frac{BC}{2.7}[/tex] = 1/ 3
2.7/3 = 0.9
Therefore, the area of the base of the smaller prism ABCD will be:
AB × BC
= 1.4×0.9
= 1.26 cm²
Therefore, 1.26 cm² is correct.
Learn more about prism from
https://brainly.com/question/4703063
