Final answer:
The distance between the two 30 degree bends to create a 20-inch offset is 20 inches.
Step-by-step explanation:
The question you've asked involves calculating the distance between bends for an offset with two 30 degree bends in pipe bending or similar tasks. To find the distance between the bends (also known as the 'spread') for a 20 inches offset, we must use the trigonometric principles related to the triangle formed by the offset and the bends. The calculation generally involves the formula:
Spread (S) = Offset (O) / (2 * sin(Bend Angle))
For a 30-degree bend angle and a 20 inches offset, the formula would be:
Spread (S) = 20 / (2 * sin(30 degrees))
Since sin(30 degrees) is 0.5, this simplifies to:
Spread (S) = 20 / (2 * 0.5) = 20 inches
Hence, the distance between the two 30 degree bends to achieve a 20-inch offset is 20 inches.