h angle of any regular polygon 360/n where
allelogram -> Opposite sides are equal and para
al sum of adjacent angle is 180º Diagonals are
ier.
(n-
21
ch interior angle of an n-sided polygon
m of the exterior angles of a n-sided polygon
- 360
4. PRACTICAL GEOMETRY
construct a quadrialteral uniquely, it is nece
asurements.
e necessary parts to cosntruct a quadrialateral m
ſour sides and one diagonal are given
two diagonals and three sides are given.
two adjacent sides and three angles are given.
three sides and two included angles are given
four sides and an angle.
fore constructing a quadrialteral one must ha
adrilateral
pezium, rhombus and square are different forms
hombus can be parallelogram, but a parallelogram
square and rhombus both have equal sides and a
hombus cannot be a square.
5. DATA HANDLING
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