Final answer:
To cut 54 3/16 long angles from a 20' length, 4 pieces can be cut.
25 pieces of 20' angle are needed to have 100 pieces.
Step-by-step explanation:
To find out how many pieces can be cut from a 20' length, we need to convert the length to the same units as the desired piece length.
There are 12 inches in a foot, so a 20' length is equal to 240 inches.
Next, we divide the length by the desired piece length:
240 / 54 3/16
= 4.432.
Since we can't have a fraction of a piece, we round down to the nearest whole number.
Therefore, we can cut 4 pieces from a 20' length.
To find out how many pieces of 20' angle are needed to have 100 pieces, we divide 100 by the number of pieces that can be cut from a 20' length:
100 / 4 = 25.
So, 25 pieces of 20' angle are needed to have 100 pieces.