∠ ABC and ∠CBD form a linear pair of angles if A , B and C are
Coplannar points
Collinear points
Non - collinear points
None of these
ABCD is a parallelogram. If area (AOB) = 17.5 sq. units then area ||gm ABCD =
140 sq. units
35 sq.units
68 sq.units
70 sq. units
If D is midpoint of BC and area ΔABD = 1/√2 sq.units, then area ΔABC is
1/√2 sq. units
√2 sq. units
2 sq.unit
In a parallelogram if diagonals are equal in length then it is
Rhombus
Square
Rectangle
ABCD is a cyclic quadrilateral ∠A : ∠C = 3 : 2 ∠B : ∠D = 4 : 1 then ∠D =
30o
36o
45o
90o
Ratio of degree measures of opposite angles of any parallelogram is
2:1
1:2
1:1
1:3
In a parallelogram ABCD if ∠A = 37o, find ∠B, ∠C, ∠D.
108o, 72o, 108o
143o, 37o, 143o
80, 100, 80
45, 135, 45
If one angle of a triangle is more than sum of other two angles, then the triangle is
An acute triangle
An obtuse triangle
A right triangle
An equilateral triangle
In the given figure , POS is a straight line . stand on POS. ∠ROS = 48o and a : b = 19 : 14.Then value of a and b respectively are
60o and 56o
76o and 34o
74o and 58o
76o and 56o
Which one of the following may be the central angle of a major arc.
240o
180o
105o