Question

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class 9 math 3 mark question

Answer 1

Answer:

x = 64 degree ( interior alternate angle)

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Answer 2

Answer:

∴∠DCE+∠CEF=180o [∵ Co-interior angles]

⇒xo+∠CEF=180o⇒∠CEF=(180−xo)

Again, EF || AB and AE is the transversal.

∠BAE+∠AEF=180 o[∵ Co-interior angles]

⇒105o+∠AEC+∠CEF=180o

⇒105o+25o+(180o−xo)=180o

⇒310−xo=180o

Hence, x=130o