Page 239 - Start Up Mathematics_8 (Non CCE)

Steps of Construction:

1. Draw a line MO = 5.5 cm.

M 5.5 cm O

2. Taking M as centre and radius = 7 cm, draw
an arc above line MO.

M 5.5 cm O
3. Taking O as centre and radius = 4.5 cm, draw
another arc intersecting the arc in step 2 at N.
N
Join MN and ON.

4. Taking N as centre and radius = 5.5 cm, 7 cm
draw an arc (to the left of ON). 4.5 cm

N M 5.5 cm O

7 cm 4.5 cm K 5.5 cm N

M 5.5 cm O 4.5 cm 7 cm 4.5 cm

5. Taking M as centre and radius = 4.5 cm,
draw another arc intersecting the arc in step
4 at K. Join KM and KN. M 5.5 cm O

Hence, MONK is the required parallelogram.
Example 3: Construct a rhombus PURE with side PU = 5.2 cm and diagonal PR = 6.8 cm.

Solution: Construction: Draw a rough sketch of the figure to
be constructed. 5.2 cm
E R
Note: Rhombus is a quadri lateral with all sides
equal so PU = RU = RE = EP = 5.2 cm.
6.8 cm 5.2 cm

Steps of Construction:
5.2 cm
1. Draw a line PR (diagonal) = 6.8 cm.
P 5.2 cm U

P 6.8 cm R
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