Answer:
3 is 108
4 is 325 lbs
Step-by-step explanation:
Answer: 
Step-by-step explanation:



=

=
=

=

Answer- 
U call it keep change change. keep 15.7. change it to subtract and change -3.45 to just 3.45 (positive not negative)
It would be a a 6 by 5 inch rectangle, since the height is 6in and the width is 5in. Those are what would make up the cross section.
It should be noted that Polygon 3 and polygon 4 are similar to polygon 1.
<h3>
What exactly is polygon?</h3>
In geometry, it should be noted that a polygon is a plane figure which is described by a finite number of straight line segments that are connected in order to form a closed polygonal chain.
In this case, the bounded plane region, the bounding circuit, may be called a polygon. Also, a similarity transformation is the conformal mapping whose transformation matrix are identical.
In this case, it should be noted that Polygon 3 and polygon 4 are similar to polygon 1.
Learn more about polygon on:
brainly.com/question/24966296
#SPJ1