Answer:
The lateral area is 
Step-by-step explanation:
we know that
The lateral area of a right prism is equal to

where
P is the perimeter of the base of the prism
H is the height of the prism
in this problem we have


substitute

Your answer is true.

The equation is used to find the equation of a line in slope-intercept form.
m is used to represent the slope.
x is used to represent the x-axis.
y is used to represent the y-axis.
b is used to represent the y-intercept.
<em>If you have any questions, feel free to ask! :)</em>