NCERT class 9 maths chapter 6 Lines and Angles
Question 1:In Fig. 6.28, find the values of x and y and then show that AB || CD.
Exercise 6.2 maths class 9 Chapter 6 Lines and Angles
Question 2:In Fig. 6.29, if AB || CD, CD || EF and y : z = 3 : 7, find x.
CBSE class 9 maths ncert solutions Chapter 6
Question 3:In Fig. 6.30, if AB || CD, EF ^ CD and Ð GED = 126°, find Ð AGE, Ð GEF and Ð FGE.
class 9 maths solutions Lines and Angles
Question 4:In Fig. 6.31, if PQ || ST, Ð PQR = 110° and Ð RST = 130°, find Ð QRS. [Hint : Draw a line parallel to ST through point R.]
NCERT class 9 chemistry chapter 6 exercise solutions
Question 5:In Fig. 6.32, if AB || CD, Ð APQ = 50° and Ð 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.