90^{o }angle is called _______
Right angle
Straight angle
0
180^{o}
If a + b = 180^{o} then a and b are
Supplementary angles
Linear pare
Give reasons x = y ____________
Conjoined angles
Corresponding angles
Alternate angles
None of these
If ∠POQ = 65o, ∠ROS = 70o, ∠QOR = 110o calculate ∠SOP
135
150^{o}
115^{o}
The figure,given below,show a pair of parallel lines cut by a transversal.Find 'a' and 'b' ?
a = 75^{o} b = 75^{o}
a = 70^{o} b = 70^{o}
a = 60^{o} b = 100^{o}
a = 70^{o} b = 65^{o}
The sum of the angles around a point is equal to ______
360^{o}
90^{o}
0^{o}
From ABC calculate ∠ABC, if ∠ACB = 60^{o} and ∠BAC = 40^{o }
80^{o}
60^{o}
40^{o}
A reflex angle is an angle which is more than ________^{o} and less than _______^{o}
90, 360
180, 360
270, 300
160, 270
Find x
85^{o}
30^{o}
20^{o}
Calculate ∠a, ∠b and ∠c
50, 60, 70
40, 90, 100
50, 360, 90
40, 140, 40