3. 3 2000 3
3
3000
3000
(Quadratic Equations)
quadratus quadratic
0.75 x2 + x = 0.75
1 x 1
1 0.5 1 0.5
2
ax bx c 0 0.5 0.5 0.25 2
(0.5) = 0.25
0.25 0.75 1 0.25 + 0.75 = 1
a b c 1 1 =1
X 0.5 1- 0.5 = 0.5
0.5 x = 0.5
ax2 + bx = c
a=1
0.75
14 15
4. 4 1850 4
4
(The Greatest Pyramid)
3000
3000
(frustum of a pyramid)
h r
R
(1/3) h ( R2+ Rr+ r 2 )
r
2
1850
6 6 h
4 2
4 16
4 2 8
2 4 4
R
16 8 4 28
6 3 2
2 28 56
(1/3) x 6 (42+2x4+22) = 56
16 17