DAV Maths Solutions for class 8 Understanding Quadrilaterals Worksheet can be read from this post. Solutions are given below with proper Explanation please bookmark our website for further updates!! All the Best !!

**Chapter 11 Worksheet 3 | Understanding Quadrilaterals | Class-8 DAV Secondary Mathematics**

**1. ABCD is a quadrilateral in which the diagonals are equal and bisect each other at right angles. What can you say about the figure? **

**Is it (i) a rectangle. (ii) a rhombus, (iii) a square? **

**Answer 1:**

**2. The diagonals of a rhombus are in the ratio 5 : 12.1f its perimeter is 104 cm. find the lengths of the sides and the diagonals. **

**Answer 2.**

**3. A pair of adjacent sides of a rectangle are in the ratio 3 : 4. If its diagonal is 20 cm. find the lengths of the sides and hence, the perimeter of the rectangle. **

**Answer 3:**

**4. ABCD is a rhombus whose diagonals intersect at 0. Show that AOB = COD. **

**Answer 4:**

**5. The diagonals of a rectangle ABCD intersect in 0. If LBOC = 70°. Find LODA. **

**Answer 5:**

**6. ABC and ADC are two equilateral triangles on a common base AC (Fig. 11.28). Find the angles of the resulting quadrilateral. Show that it is a rhombus.**

**Answer 6:**

**7. ABCD is a rectangle (Fig. 11.29) in which DP and BQ are Perpendiculars from D and B respectively on diagonal AC. Show that:(I) ADP = CBQ (ii) ADP = CBQ (iii) DP = BQ**

**Answer 7:**

- DAV class 8 Maths Book Solutions
- Chapter 1 | Square and Square Roots | Class-8 DAV Secondary Mathematics
- Chapter 2 | Cube and Cube Roots | Class-8 DAV Secondary Mathematics
- Chapter 3 | Exponents And Radicals | Class-8 DAV Secondary Mathematics
- Chapter 4 | Direct And Inverse Variation | Class-8 DAV Secondary Mathematics
- Chapter 5 | Profit, Loss And Discount | Class-8 DAV Secondary Mathematics
- Chapter 6 | Compound Interest | Class-8 DAV Secondary Mathematics
- Chapter 7 | Algebraic Identities | Class-8 DAV Secondary Mathematics
- Chapter 8 | Polynomials | Class-8 DAV Secondary Mathematics
- Chapter 9 | Linear Equations In One Variable | Class-8 DAV Secondary Mathematics
- Chapter 10 | Parallel Lines | Class-8 DAV Secondary Mathematics
- Chapter 11 | Understanding Quadrilaterals | Class-8 DAV Secondary Mathematics
- Chapter 12 | Construction Of Quadrilaterals | Class-8 DAV Secondary Mathematics
- Chapter 13 | Introduction To Graphs | Class-8 DAV Secondary Mathematics
- Chapter 14 | Mensuration | Class-8 DAV Secondary Mathematics
- Chapter 15 | Statistics and Probability | Class-8 DAV Secondary Mathematics
- Chapter 16 | Rotational Symmetry | Class-8 DAV Secondary Mathematics