Answer:
676 cubic cm choice d
Step-by-step explanation:
Base area times height gets volume
Base area = (1/2)*13 * 8 = 52 sq. cm (area of the right triangle)
height = 13 cm here
Volume = 13 cm * 52 sq. cm = 676 cubic cm
Answer:
the circumference is 31.4159 (or 31.42)
A cylinder does not have an apex
12/20 is equivalent to 3/5. <span />
<span>The Volume of a Cylinder = </span><span>π <span>• r² • height<span>
</span></span></span>radius = 13.5 feet
volume = PI * 13.5^2 * 4 feet (the problem states it is to be filled to a depth of 4 feet)
volume = PI * 182.25 * 4
volume =
<span>
<span>
<span>
2,290 cubic feet</span></span></span>
The hose delivers 80 <span>cubic feet per hour so it will take:
</span>2,290 / 80 =
<span>
<span>
<span>
28.625
</span>
</span>
</span>
hours
**************************************************************************
The volume of the pool is:
volume = PI * 182.25 * 4.5
=
<span>
<span>
<span>
2,576.</span></span></span>5 cubic feet
