In a parallelogram, all the four sides are equal and diagonals are unequal. It is a ____.

Correct! Wrong!

Youtube shikshahouse

A parallelogram, in which all the four sides are equal and diagonals are unequal is a rhombus.

In a square ABCD, the diagonals bisect each other at O. If AO = 3 cm, then the length of BD is ____.

Correct! Wrong!

AC = 2 × AO = 2 × 3 = 6 cm BD = AC = 6 cm (∵ Diagonals of a square are equal)

A quadrilateral is a trapezium, if ____.

Correct! Wrong!

A quadrilateral is a trapezium, if one pair of its opposite sides are parallel.

In a quadrilateral, if the opposite sides are equal and the diagonals are also equal, then the quadrilateral is a ____.

Correct! Wrong!

In a quadrilateral, if the opposite sides are equal and the diagonals are also equal, then the quadrilateral is a rectangle.

If sum of two angles of a quadrilateral is 200°, then the sum of the remaining two angles is 160°.

Correct! Wrong!

Given statement is a true statement as sum of the four angles of a quadrilateral is 360°.

A parallelogram is a rhombus, if ____.

Correct! Wrong!

Diagonals of rhombus are not equal and intersect each other at right angles.

No quadrilateral exists with its angles in the ratio 1: 2: 3: 6.

Correct! Wrong!

If the angles are in the ratio 1 : 2 : 3 : 6, the angles will be 30°, 60°, 90° and 180°. But no angle of a quadrilateral can be 180°.

If quadrilateral ABCD is a parallelogram, then the sum of ∠C and ∠D is ____.

Correct! Wrong!

∠C and ∠D are corresponding interior angles ∴ ∠C +∠D = 1800

The line segment joining the mid-points of two sides of triangle is parallel to the third side.

Correct! Wrong!

The line segment joining the mid-points of two sides of triangle is parallel to the third side.

In a rectangle the length of one diagonal is 15 cm and the other diagonal measures 3x + 3. The value of x is ____.

Correct! Wrong!

Diagonals of a rectangle are equal ⇒ 3x + 3 = 15 ⇒ 3x = 12 ∴ x = 4

Date
Reviewed Item
CBSE Class 9th Math 8 - Quadrilaterals MCQs
Author Rating
51star1star1star1star1star