Page 31 - Civil Engineering Formulas

b 3 d 3 2d bd c 1 = A = 3 2 c 1 d bd 3 bd 3 b 2 d 2 l 2 = l 1 = 1 1 12 36 b 2 + d 2 d bd 2 2 2 b bd r 1 = S 1 = 18 24 6 (b 2 + d 2 ) Triangle c 2 2 2 bd A = 3 c 1 d 5 3 1 1 b c 2 = d c 1 = 8 5 2 19 8 b b 3
bd 3 12 bd 3 3 l 3 = 6 (b 2 + d 2 ) 6 3 d 5 b 3 d 30
l 1 = l 2 = S 3 = r 3 = c = l 2 =

bd b 2 + d 2 d 12 bd 8 bd 3 175 16 bd 105
A = bd c 1 = d/2 c 2 = d c 3 = S 1 = bd 2 6 r 1 = 2 A = 3 l 1 = l 3 =

1 3
c 1 1 2 c
3

b Rectangle 2 2 b Parabola
c 3
2
3 1
1
d 3
d

12