Understanding Q...

If one angle of the parallelogram is $$16^{\circ}$$ less than three times the smallest angle, then the  largest angle of the parallelogram is

If the sum of all the angles of a polygon except one angle is $$2220^\circ$$, then the number of sides of the polygon are:

If $$ABCD$$ is a parallelogram whose diagonals intersect at $$O$$ and $$BCD$$ is an  equilateral triangle having  each side of length $$6$$ cm,  then the length of diagonal $$AC$$ is :

Match List I with List II and select the correct answer using the codes given below the lists:

Calculate the sum of angles of a polygon having $$10$$ sides.

If all the angles of a hexagon are equal. Find the measure of each of its angle.

Find the number of sides in a polygon if the sum of its interior angles is $$900^{\circ}$$.

The sum of the interior angles of a polygon is four times the sum of its exterior angles. Find the number of sides in the polygon.

$$PQRS$$ is a parallelogram whose diagonals intersect at M.
If $$\angle PMS = 54^{\circ}$$, $$\angle QSR = 25^{\circ}$$ and $$\angle SQR = 30^{\circ}$$: find $$\angle PSR $$

In parallelogram ABCD, $$\angle A  = 3 \angle B$$. In the same parallelogram, if AB $$= 5x-7$$ and $$CD = 3x + 1$$; find the length of CD.