Question 1 :
If $\angle{A} \cong \angle {D}$, then $\angle {D} \cong \angle {A}$ is a ___________ property of congruence.<br/>

Question 2 :
Two triangles are .......... if two angles and included side (common to both the angles) are equal to two angles and included side (common to both angles) of the other triangle.

Question 3 :
In a triangle ABC , if AB , BC and AC are the three sides of the triangle , then which of the following statements is necessarily true ?

Question 4 :
The perimeter of a triangle is $.........$ than the sum of its medians.

Question 5 :
Two sides of a triangle have lengths $7$ and $9$. Which of the following could not be the length of the third side?

Question 6 :
In $\Delta ABC, \angle A=100^{\circ}, \angle B=30^{\circ}$ and $\angle C= 50^{\circ}$,then<br/>

Question 7 :
In $\Delta ABC$, if $\angle A = 35^{\circ}$ and $\angle B = 65^{\circ}$, then the longest side of the triangle is :<br>

Question 8 :
Consider following statementsI: If three angles of a $\bigtriangleup$ are equal to three angles of another&#160;$\bigtriangleup$&#160; then the two&#160;$\bigtriangleup$&#160;s&#160;are&#160;congruent.II : If areas of two similar&#160;$\bigtriangleup$&#160;s are equal, then&#160;the&#160;$\bigtriangleup'$s are&#160;congruent. Which of above 2 statements is/are correct.

Question 9 :
Two triangles are said to be congruent if ____ of the triangles are the same.

Question 10 :
If one of the linear pair is acute then the measure of the other angle is:

Question 14 :
State true or false.The sum of interior angles of a triangle is ${ 180 }^{ \circ&#160; }$.

Question 17 :
If two adjacent angles are equal, then each angle measures $90^o$.<br/>