QUADRILATERALS CLASS IX

The diagonals of _______________ does not bisect each other

• rectangle

• square

• trapezium

• rhombus

the sum of the angles of a quadrilateral is _______

• 180 degrees

• 90 degrees

• 270 degrees

• 360 degrees

If ABCD is a trapezium in which AB || CD and AD = BC, then:

• ∠A = ∠B

• ∠A > ∠B

• ∠A < ∠B

• cannot be determined

the consecutive angles of a parallelogram is

• equal

• complementary

• supplementary

If in a parallelogram its diagonals bisect each other at right angles and are equal, then it is a

• square

• rectangle

• rhombus

• parallelogram

Which of the following is not true for a parallelogram?

• Diagonals bisect each other

• opposite angles are equal

• opposite sides are equal

• opposite angles are bisected be diagonals

Three angles of a quadrilateral are 75°, 90°and 75°, the fourth angle is

• 90°

• 95°

• 105°

• 120°

ABCD is a rhombus such that ∠ACB = 40°, then ∠ADB is

• 40°

• 45°

• 50°

• 60°

If angles A, B, C and D of a quadrilateral ABCD, taken in order, are in the ratio 3 : 7 : 6 : 4, then ABCD is a

• rhombus

• rectangle

• trapezium

• square

The bisectors of any two adjacent angles of a || gm intersect at

• 30°

• 45°

• 60°

• 90°