Question

1
2.
the exterior angles of a n-sided polygon - 360
4. PRACTICAL GEOMETRY
To construct a quadrialteral uniquely, it is necessary to have atleast
measurements.
Five necessary parts to cosntruct a quadrialateral may be
a) four sides and one diagonal are given
b) two diagonals and three sides are given
c) two adjacent sides and three angles are given.
d) three sides and two included angles are given
e) four sides and an angle.
Before constructing a quadrialteral one must have the rough sketch of
quadrilateral
Trapezium, rhombus and square are different forms of a parallelogram.
A rhombus can be parallelogram, but a parallelogram cannot be a rhombus.
A square and rhombus both have equal sides and a square can be a rhombus
a rhombus cannot be a square
5. DATA HANDLING
3
5.
ΣΧ.
1.
Mean =
Sum of all observations
Number of observations
Or
N​

Answer 1

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