Sector of a Circle
Segment of a Circle
Figure 14-37.--Areas and volumes for calculating weights of castings--Continued.
A = 1/2
parentheses. There are no symbols between a and the
first parenthesis. This means that a must be multiplied
by the sum of e + d, which results in a product of 140.
After substituting numerical values for the letter
Next multiply bd and ce. This results in products of 18
symbols, add e + d, since they are enclosed within
and 40. When these products are added to 140, you