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.
Answer:
The answer is C. (1.1)
Step-by-step explanation:
Answer:
b<negative 4/7
Step-by-step explanation:
negative 4/7 plus5/7= 2/7
so b has to be less than negative 4/7.
Answer:
see explanation
Step-by-step explanation:
Given
= 
= 
Rationalise the denominator by multiplying the numerator/ denominator by 
Note that 
× = a
= × 
= 
412 ÷ 20 = 20 boxes with 12 remaining.
Total boxes needed = 20 + 1 = 21
Answer: 21 boxes will be needed.
