Each interior angle of a regular polygon of n sides (n ≥ 3) contains
4n right angles
2(n + 1)/n right angles
2(n - 1)/n right angles
2(n - 2) /n right angles
The number of sides of a regular polygon, if each of its interior angles is 135°, is given by
4
6
8
10
If angles P, Q, R, and S of the quadrilateral PQRS, taken in order, are in the ratio 3 : 7 : 6 : 4, then PQRS is a
rhombus
parallellogram
trapezium
kite
The sum of the measures of the four angles of the quadrilateral is
180°
90°
120°
360°
If the diagonal AC, BD of a parallelogram meet at O, then
OA= OC
OA=OB
OA= OD
OA= BD
In a rhombus ABCD, its diagonals intersect at 'O'. Then AOB=
45o
90o
180o
none of these
_____ is always a regular polygon.
Isosceles triangle
Equilateral triangle
Rectangle
Pentagon
In a rectangle ABCD, the diagonal AC = 10 cm then the diagonal BD =
5 cm
10 cm
20 cm
40 cm
Sum of exterior angles of a quadrilateral in right angles
1
2
3
Opposite sides of a parallelograms are
Equal
Not equal
Supplementary
None of these