Answer:

Step-by-step explanation:
The volume of a pyramid is

where B = area of the base, and h = height of the pyramid
The base is a square.




The side of the base has length 6. Each face of the pyramid is an equilateral triangle with side of length 6.
An altitude of this triangle measures


The pyramid is formed by 4 equilateral triangles whose bases form a square. The tips of the faces meet at a single point on top. The vertical distance from that point to the center of the base is the height of the pyramid.




Volume of the pyramid:



Answer: 90%
Step-by-step explanation:
54/60=0.9 0.9*100= 90
Answer:
15 5/9 °C
Step-by-step explanation:
Put 60 where F is in the equation and do the arithmetic.
... C = (5/9)(60 -32) = (5/9)(28) = 140/9
... C = (135 +5)/9 = 15 5/9