It's a equilateral triangle with each side being equal to the radius.
So the area is
The total cost would be:
$20 = two people- 2*20=40$
20 = guest
20*20=
400 would be the cost
Answer:
90.3125 cm³
Step-by-step explanation:
Since the perimeter of the bottom square is 17, you can divide by four to find out what the lenght of each side is.
17/4=4.25 cm
We know the height of pyramid is 15 cm
The formula for the volume of a square pyramid is
V=a²(h/3)
V=a2(h/3)=4.252·15/3=90.3125 cm³
The common difference is 8 because you add 8 to each number to get to the next number.
You would solve this with multiplication. If each desk costs $24 and they bought 32 desks then to find out to total cost of all the desks you would multiply 24x32
