Download free pdf of **Understanding Quadrilaterals Worksheets for Class 8**. Students can easily get all the Class 8 Maths Worksheets and Exercises in Free Printable ( PDF Format) as per the latest syllabus and examination pattern in CBSE and NCERT pattern. Below you will find all the Understanding Quadrilaterals related sums that are asked in 8th Grade Mathematics Exams Across Indian Schools.

## Understanding Quadrilaterals Worksheets for Class 8 in PDF Format

- Class 8 Maths Understanding Quadrilaterals Worksheet
- Class 8 Maths Understanding Quadrilaterals Worksheet
- Maths Worksheets for CBSE Class 8 Understanding Quadrilaterals
- CBSE Class 8 Maths Understanding Quadrilaterals Questions
- Important Questions on Understanding Quadrilaterals for Class 8 Math
- Worksheet on Understanding Quadrilaterals for CBSE Class 8 Maths
- Understanding Quadrilaterals CBSE Class 8 Maths Worksheet
- Understanding Quadrilaterals CBSE Class 8 Questions for Maths
- Understanding Quadrilaterals CBSE Class 8 Maths Important Questions
- Understanding Quadrilaterals Class 8 Worksheet with Answers

### Class 8 Understanding Quadrilaterals Practice Worksheet

**Q.1** In a parallelogram *ABCD,* ∠*B* = ∠*C*. What is the degree measure of ∠*B* and ∠*C*.

**Q.2 **In a parallelogram *ABCD *the point of intersection of both diagonals *AC *and *BD *is *O*. If *AC *= 16 cm and *BD *= 12 cm then what is *OA *and *OD.*

**Q.3** *ABCD *is a rhombus. If *AB *= 4 cm then what is the perimeter of *ABCD?*

**Q.4*** *PQRS* *is a rhombus. If *PO *= 4 cm and *OQ *= 3 cm then what is *PR *+ *SQ*?

**Q.5** PQRS is a rhombus with *PQ *= 10 cm. If *OQ *= 6 cm then what is the length of the diagonal *PR*?

**Q.6** In a rhombus* RSTU *if ∠*R =* 1200, then what is the measure of *S*.

**Q.7 ***ABCD *is a rhombus in which *AO *= 4cm and *OB *= 3 cm. What is the length of the side of the rhombus?

**Q.8** What is the measure of each exterior angle of a regular polygon of 10 sides?

**Q.9** How many sides does a regular polygon has if each of its interior angle is 160°?

**Q.10** If the total angle sum of a polygon is 108° then how many sides does polygon has?

**Q.11** *ABCD *is a parallelogram. The perimeter is 144 cm and *BC *= 20 cm then find *AB.*

**Q.12** The ratio of two adjacent sides of a parallelogram is 5:4. Its perimeter is 18 cm then, what is the length of the adjacent sides.

**Q.13** *PQRS *is a parallelogram and diagonals *PR *and *SQ *bisect at *O*. If *PO *= 3.5 cm and *OQ *= 4.1 cm. What is the length of the diagonals.

**Q.14** ABCD is a rhombus whose diagonals AC and BD intersect at a point O. If side AB = 10cm and diagonal BD = 16 cm, find the length of diagonal AC.

**Q.15** One of the diagonals of a rhombus is equal to one of its sides. Find the angles of the rhombus.

**Q.16** The diagonals of a rhombus ABCD intersect at O. If ∠ADC = 120° and OD = 6 cm, find (i) OAD (ii) side AB (iii) perimeter of the rhombus ABCD.

**Q.17** ABCD is a trapezium where AB parallel to CD. measure of ∠A = ∠B = 45°. Prove that AD=BC.

**Q.18** Three angles of a quadrilateral are in the ratio 3:4:5. The difference of the least and the greatest of these angles is 45. Find all the four angles of the quadrilateral.

**Multiple Choice Questions: Understanding Quadrilaterals – Class 8 Mathematics**

**Question 1:** A quadrilateral with all sides of equal length and all angles of equal measure is called a:

a) Square

b) Rectangle

c) Parallelogram

d) Rhombus **Answer:** a) Square

**Question 2:** A quadrilateral in which opposite sides are equal and parallel, and opposite angles are equal is called a:

a) Trapezium

b) Kite

c) Parallelogram

d) Rhombus **Answer:** c) Parallelogram

**Question 3:** In a parallelogram, the opposite angles are:

a) Supplementary

b) Complementary

c) Equal

d) Right angles **Answer:** c) Equal

**Question 4:** The sum of the angles of a quadrilateral is:

a) 360 degrees

b) 180 degrees

c) 90 degrees

d) 270 degrees **Answer:** a) 360 degrees

**Question 5:** If the diagonals of a quadrilateral bisect each other at right angles, then the quadrilateral is a:

a) Parallelogram

b) Rectangle

c) Rhombus

d) Square **Answer:** b) Rectangle

**Question 6:** A quadrilateral with exactly one pair of opposite sides parallel is called a:

a) Trapezium

b) Rhombus

c) Square

d) Parallelogram **Answer:** a) Trapezium

**Question 7:** In a rhombus, each diagonal bisects:

a) Two angles

b) One angle

c) Four angles

d) Three angles **Answer:** c) Four angles

**Question 8:** The angles opposite to equal sides of an isosceles trapezium are:

a) Right angles

b) Congruent

c) Supplementary

d) Equal **Answer:** b) Congruent

**Question 9:** The diagonals of a rectangle are:

a) Equal and perpendicular

b) Equal and bisecting each other

c) Unequal and perpendicular

d) Unequal and bisecting each other **Answer:** a) Equal and perpendicular

**Question 10:** A quadrilateral with all sides of different lengths and no angles of equal measure is called a:

a) Square

b) Rhombus

c) Parallelogram

d) Trapezium **Answer:** d) Trapezium

### Class 8 Maths Understanding Quadrilaterals

### Fill In The Blanks

1. A simple closed curve made up of only …………… is called a polygon.

2. The measure of each interior angle of a regular polygon is 140°, then number of sides that regular polygon has …………….. .

3. The diagonals of a rhombus bisect each other at ………………… angles.

4. The diagonals of square bisect each other at …………………. angles.

5. The opposite angles of a parallelogram are ………………….. .