In a theorem ‘ then ‘ part is called
Existential part
Uniqueness
Both (1) and (2)
None of these
Number of points that can be plotted on a line is
2
4
3
Infinite
l, m are two lines such that l U m = Φ then 1, m are
Parallel
Perpendicular
Concurrent
Intersecting lines
l, m are coplanar lines and l ∩ m = { p } then the lines
Intersecting at p
Non – intersecting
In a theorem ‘ if ‘ part is called
. If ∠A : ∠B = 2 : 3 then ∠A =
180^{o}
72^{o}
45^{o}
30^{o}
In the below figure one pair of alternate interior angle is ∠C and ∠E then the other pair is
∠C , ∠D
∠B, ∠F
∠D, ∠F
∠G, ∠H
If a pair of parallel lines, intersected by a transversal then the sum of interior angles on the same side of transversal is
90^{o}
360^{o}
270^{o}
If two lines are parallel to a third line then they are ______ to one another.
Coplanar
Intersecting
Write converse of “ In Δ ABC if AB = AC then ∠ B = ∠ C.
In Δ ABC if ∠ B ≠ ∠ C then AB = AC
In Δ ABC if ∠ B + ∠ C = 180^{o} then AB = AC
In Δ ABC if ∠ B > ∠ C then AB = AC
In Δ ABC, if ∠ B = ∠ C then AB = AC