Use similar volume to calculate
which is the (ratio of edges)^3 = (ration of volume)
so just put the numbers in, let the volume of smaller pyramid be y.
(3/4)^3 = y/320
27/64 = y/320
y=135in3
<span>4 1/5-2 1/2 = 1.7
1.7 to fraction is 1 7/10
Answer: 1 7/10</span>
Apply Pythagoras:
length = sqrt( (10--4)² + (6-3)² ) = sqrt(205)
You need to multiply both sides of the equation by the reciprocal of 3/4. The reciprocal is 4/3 and 4/3 multiplied by 9 = 12. So x = 12 because a number times the reciprocal is one.
