Question Text
Question 2 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d14ef59b460d7261f419.png' />
In the above figure, OD is the bisector of $∠$AOC, OE is the bisector of $∠$BOC and OD $⊥$ OE. Hence, the points A, O and B are ______________.
Question 3 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d14af59b460d7261f413.png' />
In the given figure, if AB || CD || EF, PQ || RS, $∠$RQD = $25^{\circ}$ and ∠CQP = $60^{\circ}$, then $∠$QRS is equal to _______.
Question 5 :
Let OA, OB, OC and OD are rays in the anticlockwise direction such that $∠$AOB = $∠$COD = $100^{\circ}$, $∠$BOC = $82^{\circ}$ and $∠$AOD = $78^{\circ}$. Is it true to say that AOC and BOD are lines?
Question 6 :
If a transversal intersects two parallel lines, then alternate interior angles are _____________.
Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d14bf59b460d7261f414.png' />
In the picture given above, POQ is a line. The value of x is ________.
Question 8 :
How many triangles can be drawn having its angles as $45^{\circ}$ $64^{\circ}$ and $72^{\circ}$?
Question 9 :
An exterior angle of a triangle is $105^{\circ}$ and its two interior opposite angles are equal. What is the value of each of these equal angles?
Question 10 :
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is _________.