Question 1080410
For a cylinder, the formula for volume is v=&#960;r²h, where r is the radius, and h is the height. So, for these rods, the measure is:
V=&#960;(3)²20=180&#960;
189 rods =189 x 180&#960;=106877 cm³ of steel needed. &#9786;&#9786;&#9786;&#9786;