You add all the sides together, a good way to remember it is "perimeter, plus"
Answer:
75cm^2
Step-by-step explanation:
When you say a rectangular prism, it means it has the base has 4 sides of which opposite sides are equal as a rectangle. This sides substends so we have a total of 6 surfaces in this prism.
This 6 surfaces has 3 surface area the same.
The surface area = sum of area of all faces.
325= 50 + 50 + 37.5 + 37.5 + 2x; where X is the area of the surface unknown.
325= 100+ 75 + 2x
325-175= 150
150= 2x
X= 150/ 2 = 75 cm^2
In 4 hours they will walk 14 miles
<h3>
<u>QU</u><u>ESTION</u><u>:</u></h3>
WHAT IS THE PRODUCT OF: 7.21 x 4.2
PLEASE--
<h3>SOLUTION AND ANSWER:</h3>

THEREFORE, <em><u>30.282</u></em> IS THE PRODUCT
HOPE THIS HELP YOU! HAVE A NICE DAY!
~kimtaetae92~
NOTE: Kindly see this answer from brainly app if you are in web to see the displayed formats here.
Number 2 is the answer to you question