Fill in the blanks :- a. A quadrilateral whose all sides, diagonals and all angles are equal is called a .
b. The sum of adjacent angles of a parallelogram is .
c. In convex polygon each interior angle is .
d. If the adjacent sides of a parallelogram are equal , then the parallelogram is called a
e. The quadrilateral having one pair of opposite sides parallel is called a .
f. is a quadrilateral whose all sides and opposite angles are equal and diagonals bisect
each other at right angles.
g. is a quadrilateral whose opposite sides are equal and all the angles are equal.
Name the following quadrilaterals
a. A parallelogram in which diagonals are equal, but adjacent sides are not equal.
b. A parallelogram with diagonals unequal, but bisect each other at 900
.

c. A parallelogram in which adjacent sides are equal and diagonals are equal and bisect each
other at 900
LEVEL 2
Q2. Measure of one angle of a parallelogram is 800

. What are the measures of the remaining

angles?
Q3.The angles of a quadrilateral are in the ratio 1:1:3:4. Find the measures of all the angles.
Q4.Two angles of a quadrilateral are 650 each. The other two angles are equal. Find the
measure of each of these equal angles?
Q5. Perimeter of a rhombus is 40 cm and one of its diagonals is 12 cm, find the length of the
other diagonal?