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Chapter 9 Worksheet 3 | Congruent Triangles | Class-7 DAV Secondary Mathematics
Unit 9 Worksheet 3 || Congruent Triangles
1. In Fig. 9.28, ∠P = ∠Y = 40° and ∠Q = ∠Z = 60°. Find the third pair of corresponding parts which make △PQR = △YZX, by ASA congruence condition.
Answer 1:
2. Which pairs of triangles are congruent by ASA congruence condition In Fig. 9.29? If congruent, write the congruence of the two triangles in symbolic form.
Answer 2:
3. in Fig. 9.30, QX bisects ∠POR as well as ∠PSR. State the three facts needed to ensure that △QRS = △QPS.
Give reasons for each statement.
Answer 3:
4. In Fig. 9.31, PS bisects ∠P and PS Perpendicular QR.
(i) Find the three pairs of matching parts to check whether △PSQ = △PSR or not.
(ii) Is △PSQ = △PSR?
(iii) Is it true to say that QS = SR? Why?
Answer 4:
5. In Fig. 9.32, AO = BO and ∠A = ∠B.
(i) Is ∠AOC = ∠BOD? Why?
(ii) Is △AOC = △BOD by ASA congruence condition?
(iii) Is ∠ACO = ∠BDO? Why?
Answer 5:
- Chapter 1 Rational Numbers | Class-7 DAV Secondary Mathematics
- Chapter 2 Operations on Rational Numbers | Class-7 DAV Secondary Mathematics
- Chapter 3 Rational Numbers as Decimals | Class-7 DAV Secondary Mathematics
- Chapter 4 Exponents and Powers | Class-7 DAV Secondary Mathematics
- Chapter 5 Application of Percentage | Class-7 DAV Secondary Mathematics
- Chapter 6 Algebraic Expressions | Class-7 DAV Secondary Mathematics
- Chapter 7 Linear Equations in One Variable | Class-7 DAV Secondary Mathematics
- Chapter 8 Triangle and Its Properties | Class-7 DAV Secondary Mathematics
- Chapter 9 Congruent Triangles | Class-7 DAV Secondary Mathematics
- Chapter 10 Construction of Triangles | Class-7 DAV Secondary Mathematics
- Chapter 11 Perimeter and Area | Class-7 DAV Secondary Mathematics
- Chapter 12 Data Handling | Class-7 DAV Secondary Mathematics
- Chapter 13 Symmetry | Class-7 DAV Secondary Mathematics
- Chapter 14 Visualising Solids | Class-7 DAV Secondary Mathematics
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