Two angles are complementary if their sum is ________.
180
360
90
0
Calculate ∠a, ∠b and ∠c
50, 60, 70
40, 90, 100
50, 360, 90
40, 140, 40
From ABC calculate ∠ABC, if ∠ACB = 60o and ∠BAC = 40o
80o
60o
40o
None of these
If ∠POQ = 65o, ∠ROS = 70o, ∠QOR = 110o calculate ∠SOP
180o
135
150o
115o
From ΔPQR calculate ∠QPR
80
65o
A straight angle is an angle which is equal to _________
90o
360o
270o
A reflex angle is an angle which is more than ________o and less than _______o
90, 360
180, 360
270, 300
160, 270
Give reasons x = y ____________
Conjoined angles
Corresponding angles
Alternate angles
The figure,given below,show a pair of parallel lines cut by a transversal.Find 'a' and 'b' ?
a = 110o b = 70o
a = 75o b = 75o
a = 60o b = 30o
a = 60o b = 65o
If a straight line cuts two other straight lines so that two alternate angles are equal than the two straight lines are ________
Parallel
Perpendicular
Equal
An current
