The height of the triangular base of the pyramid is calculated through the equation,
h = (cos x)(18 in)
where h is height and x is half of the angle of the triangle. Since the triangle is equilateral, the value of x is 30°. Substituting,
h = (cos 30°)(18 in)
h = 15.59 in
Thus, the height of the base is approximately 15.59 inches.
It would be 330 if rounded to the nearest 10th place
Answer:
Never true
Step-by-step explanation:
Linear angles are adjacent angles whose sum is 180
2
3
-7
24
-25
-3
second row
-12
-2
-9
-38
10
-28
Posted a picture showing the solution. Everything is on it, including calculations.
The answer is 142 square inches (or 142 in.^2) same thing.
Hope this helps!