Ex 5.1, 12 (ii) - Chapter 5 Class 7 Lines and Angles
Last updated at Oct. 30, 2018 by Teachoo
Last updated at Oct. 30, 2018 by Teachoo
Transcript
Ex 5.1, 12 Find the values of the angles x, y, and z in each of the following: (ii)Lines AD and EC intersect ∴ ∠DOC = ∠AOE z = 40° Now, AD is a line ∠DOE + ∠AOE = 180° y + 40° = 180° y = 180° − 40° y = 140° Also, Lines AD and CE intersect ∠DOE = ∠COA y = ∠COB + ∠BOA 140° = x + 25° 140° − 25° = x 115° = x y = 115°
Adjacent Angles, Linear Pair of angles, Vertically Opposite angles
Adjacent Angles, Linear Pair of angles, Vertically Opposite angles
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