1. Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C F
V 1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F

2. 3
4
2
P3
P4 5
3’
4’
1 2’
P2
P5
5’
1’
P1
6’ P6
P12 12 6
12’
7’
11’
P7
P11 8’
10’ 7
9’ P8
P10
11 P9
8
10
9

3. PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’ E
2’
3’
4’
F
C D
1
2
3
4
B