Question 1 :
A quadrilateral whose each angle is a right angle is a
Question 2 :
Fill in the blank:<br/>Line joining the mid-points of any two sides of a triangle is _____ to the third side.<br/>
Question 3 :
The perimeter of a parallelogram is ...................... when the sides are $12$ cm and $5$ cm.
Question 4 :
What is the sum of the measures of the angles of a convex quadrilateral? Will this property hold if the quadrilateral is not convex?<br>
Question 5 :
The diagonals of rhombus are $24$ cm and $10$ cm. Then its perimeter is:
Question 6 :
In a quadrilateral ABCD, $\angle A + \angle C = 180^{\circ}$ then $\angle B + \angle D = $
Question 8 :
Three angles of a quadrilateral are $75^{\circ}, 90^{\circ}$ and $75^{\circ}$. The measure of fourth angle is?<br/>
Question 9 :
What is the maximum possible area of a parallelogram with one side of length 2 meters and a perimeter of 24 meters ?
Question 11 :
Two opposite angles of a parallelogram are ${\left( {3x - 2} \right)^ \circ }$ and ${\left( {50 - x} \right)^ \circ }$. Find the value of $x$
Question 12 :
The dimensions of rectangular field are $23x-10$ and $14x+8$ units. The values of $x$ for which it would be square is
Question 15 :
Name the quadrilaterals whose diagonals bisect each other<br/><br/><b>Answer: </b>Parallelogram; rhombus; square; rectangle.<br/>
Question 16 :
State 'true' or 'false':The diagonals of a quadrilateral bisect each other.
Question 17 :
Two adjacent angles of a parallelogram are $\left(2x+25\right)^{o}$ and $\left(3x-5\right)^{o}.$ The value of $x$ is
Question 18 :
In triangle$ABC$,$M$is mid-point of$AB$and a straight line through$M$andparallel to$BC$cuts$AC$in$N$. Find the lenghts of$AN$and$MN$if $ BC= 7$ cm and $ AC= 5 $ cm.
Question 19 :
In parallelogram $ABCD$, $AB= \left ( 3x\, -\, 4 \right )$ cm,  $BC= \left ( y\, -\, 1 \right )$ cm, $CD= \left ( y\, +\, 5 \right )$ cm and $AD= \left ( 2x\, +\, 5 \right )$ cm. Find the ratio $AB\, :\, BC$.<br/>
Question 20 :
Two consecutive angles of a parallelogram are in the ratio $1 : 3$, then the smaller angle is :<br/>