Given:
The figure of a square base pyramid.
To find:
The area of volume of the pyramid.
Solution:
The area of square base is:
Area of one triangular side of the pyramid is:
Now, the total surface area of the pyramid is:
Therefore, the surface area of the pyramid is 672 square m.
The volume of the pyramid is:
Where, B is the base area and h is the vertical height of the pyramid.
Substituting 
, we get
Therefore, the volume of the pyramid is 512 cubic meters.
Hence the correct option is d.
Answer:
12
Step-by-step explanation:
i think that is right
Answer: 28 feet.
Step-by-step explanation:
Given: During the winter months, freshwater fish sense the water getting colder and swim to the bottom of lakes and rivers to find warmer water.
The total depth of the lake = 32 feet
Since, fish swims 7/8 of the depth, then the depth of lake to which the fish swim=
Since, 
therefore, 
Hence, the fish swim 28 feet in lake.
Answer:
On average, he exercises 2.875 hours per week.
Step-by-step explanation:
Just do 11 1/2 (11.5) divided by 4, and you get your answer of 2.875 hours per week.
Outbound Trip 120 miles 60 mph equals 2 hours
Return Trip 120 miles
Total Trip 240 miles at 45 mph average speed
Total time = distance / rate = 240 / 45 = 5.3333333333 Hours
The return trip of 120 miles takes (5.3333333333 Hours MINUS 2 hours)
Return Trip Speed = 120 / 3.333333333 = 36 miles per hour
