Answer:
the fourth one should be the answer
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.
The answer is 6 Betis the highest exponent
Square root of 9 is 3 square root of 180 is 13.416roundes 3x13.416 is 40.248
