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Ex 5.1, 12 (ii) - Chapter 5 Class 7 Lines and Angles
Last updated at March 23, 2023 by Teachoo
Ex 5.1
Ex 5.1, 1 (i)
Ex 5.1, 1 (ii) Important
Ex 5.1, 1 (iii) Important
Ex 5.1, 2 (i)
Ex 5.1, 2 (ii) Important
Ex 5.1, 2 (iii) Important
Ex 5.1, 3 (i)
Ex 5.1, 3 (ii) Important
Ex 5.1, 3 (iii)
Ex 5.1, 3 (iv) Important
Ex 5.1, 3 (v)
Ex 5.1, 3 (vi) Important
Ex 5.1, 4
Ex 5.1, 5 Important
Ex 5.1, 6
Ex 5.1, 7 Important
Ex 5.1, 8
Ex 5.1, 9
Ex 5.1, 10 Important
Ex 5.1, 11
Ex 5.1, 12 (i)
Ex 5.1, 12 (ii) Important You are here
Ex 5.1, 13 (i) Important
Ex 5.1, 13 (ii)
Ex 5.1, 13 (iii) Important
Ex 5.1, 13 (iv)
Ex 5.1, 13 (v)
Ex 5.1, 13 (vi) Important
Ex 5.1, 14
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°
