Answer:
144 sq in
Step-by-step explanation:
Face height=9, bases=6 in
#Assume the pyramid has a square base.
First we need to calculate the perpendicular height of the pyramid:

Now to find the surface area of each pyramid:

Hence amount of construction paper needed to make each pyramid is 144 sq in
We use the law of Cosines to be able to find : 1. The measure of the
third side, when the measure of two sides and the included angle of a
triangle ABC are known. 2. The measure of any angle, when the measure of
the three sides of a triangle ABC are known.
The Law of Cosines is c² = a² + b² - 2abcosΘ. It has four variables;
a, b, c and Θ. Whenever you have a triangle with three of these
variables known, use the Law of Cosines to calculate the unknown
variable.
X=5/9
Y=0.65
See below the following picture for the solution
Answer:
-0.85714285714
Step-by-step explanation:
With a calculator or even by hand, you can divide the two numbers and find the solution. If you want to round up your answer is 0.86.
Hoping this answers your question!