Rhombus

Q.

The fundamental difference between a rhombus and a kite is that, in a kite, the sum of adjacent angles are supplementary.

1. Congruent only.

2. Parallel only.

Q. Which quadrilateral has:
All sides equal, and opposite angles equal?

1. Rectangle
2. Rhombus
3. Trapezium
4. Kite

Q.

Name the quadrilateral for which diagonals are unequal but the adjacent sides are equal.

1. Parallelogram

2. Rhombus

3. Rectangle

4. Square

Q. When we join two equilateral triangles , the figure most likely to be formed is a .

1. square
2. rectangle
3. rhombus
4. kite

Q. Some rhombuses are squares. State true or false.

1. True
2. False

Q. Write four properties of parallelogram.

Q.

All squares are rhombuses and also rectangles.

1. True
2. False

Q.

Question 1 (d)

Say True or False:

All the sides of a rhombus are of equal length.

Q.

Which quadrilateral has 4 equal sides but is not a square?

1. Trapezoid

2. Rhombus

3. Parallelogram

4. Rectangle

Q.

The quadrilateral whose diagonals are unequal and the adjacent sides are equal is rhombus.

1. True

2. False

Q.

All rhombuses are kites

1. True
2. False

Q.

Some rhombuses are squares.

1. True

2. False

Q. Which of the following is NOT a property of a rhombus?

1. Diagonals bisect each other.
2. Diagonals are equal.
3. All sides are equal.
4. Opposite angles are equal.

Q. Which of the following quadrilateral(s) with all the sides equal?

1. Rectangle
2. Trapezium
3. Square
4. Rhombus

Q. Sets square are used to construct parallel lines and not perpendicular lines.

1. True
2. False

Q. A quadrilateral whose sides are equal in length is called a

1. parallelogram
2. rectangle
3. rhombus

Q. Which of the following is a true statement about quadrilaterals?

1. A quadrilateral has 5 sides.
2. In a quadrialateral, all angles are right angles.
3. All sides are equal in a quadrilateral.
4. A quadrilateral has 4 sides.

Q.

Write a note on quadrilaterals.

Q.

Which of the following is a quadrilateral with all equal sides?

1. Triangle

2. Rectangle

3. Square

4. Rhombus

Q.

Question 2 (c)

Give reasons for the following:

A square can be thought of as a special rhombus.

Q. If all sides are equal in a parallelogram then it is a .

1. Trapezium
2. Square
3. Rectangle
4. Rhombus

Q.

The diagonals of a rhombus are 6 cm and 8 cm. State the angle at which these diagonals intersect.

1. ${80}^{\circ }$

2. ${120}^{\circ }$

3. ${90}^{\circ }$

4. ${108}^{\circ }$

Q. A quadrilateral whose diagonals are unequal, perpendicular and bisect each other is called a.

1. rhombus
2. trapezium
3. parallelogram

Q.

The fundamental difference between a rhombus and a square is that the sum of adjacent angles is supplementary in a square and not in a rhombus.

1. Congruent only.

2. Parallel only.

Q. We can use _____ to construct parallel lines.

1. ruler
2. protractor
3. compass
4. set square

Q. A quadrilateral whose each angle is a right angle is a

(a) square
(b) rectangle
(c) rhombus
(d) parallelogram

Q.

A square is also a rectangle and a rhombus too.

1. True
2. False

Q.

A rhombus is a square.

1. Rhombus

2. Quadrilateral

Q. A quadrilateral whose opposite sides are parallel is called

(a) a rhombus
(b) a kite
(c) a trapezium
(d) none of these

Q.

Find which of the following are true:

1. All rhombuses are squares

2. All squares are rectangles

3. All rectangles are parallelograms

4. All parallelograms are quadrilaterals

5. All parallelograms are rhombuses

1. 2, 3 and 4

2. 3, 4 and 5

3. All of them

4. 1, 2 and 3