Page 178 - Maths Skills - 7
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176 Maths
Exercise 10.3
1. In Fig., DABC and DDBC are isosceles. 2. In triangle PQR, PQ = PR then write its to equal
Find angles.
(i) ∠ABC and ∠ACB
(ii) ∠DBC and ∠DCB
(iii) ∠x
3. In Fig. given below identify which of the two sides are equal.
U
(i) (ii) (iii)
4. In Fig., DPQR and DSQR are both isosceles with common base QR. The equal sides
have been shown with similar markings.
If ∠P = 60° and ∠S = 40°, find
(i) ∠PQR and ∠PRQ
(ii) ∠SQR and ∠SRQ
(iii) ∠PQS and ∠PRS.
Are these equal?
5. In Fig., AC = CB and CD = BD. 6. In DXYZ in Fig., ∠X = ∠Z.
Find the values of ∠x, ∠y and ∠z. Write the two equal sides.
7. In Fig. given below, identify which of the two angles are equal.
(i) (ii) (iii)
