Answer: 31.25 cm^2
Step by Step Explination: I just went onto Google and typed in "surface area of a pyramid formula," and then entered the given values, and the given length and width are equal.
Hope this helps!
lateral area = 2 X pi X r X H
= 2 x 3.14 x 5 x 9 = 282.6
Answer:

Step-by-step explanation:
To find
, we need to eliminate
in this system of equations:
(1)
(2)
From (1) and (2):


Then, we equalize both expressions and solve for
:




The first picture shows you how to solve it and the second picture is showing you how to get your answer in simplest form.