Answer:
The deep of the sand will be 3.5 feet
Step-by-step explanation:
step 1
Find out the area of the court plus a 10-foot boundary around the court for safety
![A=(30+10+10)(60+10+10)\\A=(50)(80)\\A=4,000\ ft^2](https://tex.z-dn.net/?f=A%3D%2830%2B10%2B10%29%2860%2B10%2B10%29%5C%5CA%3D%2850%29%2880%29%5C%5CA%3D4%2C000%5C%20ft%5E2)
step 2
Find the deep of the sand
we know that
The volume of the sand is equal to
![V=Ah](https://tex.z-dn.net/?f=V%3DAh)
where
A is the area of the base
h is the height or deep of the sand
substitute the given values
![14,000=(4,000)h](https://tex.z-dn.net/?f=14%2C000%3D%284%2C000%29h)
Solve for h
![h=14,000/4,000=3.5\ ft](https://tex.z-dn.net/?f=h%3D14%2C000%2F4%2C000%3D3.5%5C%20ft)
Answer:
yes
Step-by-step explanation:
Cos 25=0.90631
cos 25=(the end of the slide to the stairway beneath the top of the slide)/( length of the slide)
length of the slide=60/0.90631=66.2
the length of the slide = 66.2 feet
Answer:
A) 22
Step-by-step explanation:
Total interior angle:
(n - 2) × 180
(n - 2)×180 = 3600
n - 2 = 20
n = 22