Answer:
40.3 m
Step-by-step explanation:
a²+b²=c²
40²+5²=c²
1600+25= 1625
√1625 = 40.3112
Answer:
both each side of each triangle is equal
use alphabets to mark each edge of the triangles and prove congruency
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.
