Class 9 Maths NCERT Solutions Chapter 6: Lines and Angles is developed and witten by our expert teachers. Students can study our solutions of Chapter 6: Lines and Angles class 9 Maths, Question 1. In Fig. 6.28, find the values of x and y and then show that AB || CD., Question 2. In Fig. 6.29, if AB || CD, CD || EF and y : z = 3 : 7, find x., Question 3. In Fig. 6.30, if AB || CD, EF ⊥ CD and ∠ GED = 126°, find ∠ AGE, ∠ GEF and ∠ FGE., Question 4. In Fig. 6.31, if PQ || ST, ∠ PQR = 110° and ∠ RST = 130°, find ∠ QRS., Question 5. In Fig. 6.32, if AB || CD, ∠ APQ = 50° and ∠ PRD = 127°, find x and y., Question 6. In Fig. 6.33, PQ and RS are two mirrors placed parallel to each other. An incident ray AB strikes the mirror PQ at B, the reflected ray moves along the path BC and strikes the mirror RS at C and again reflects back along CD. Prove that AB || CD..
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