Question

pls answer this question

Answer 1

Lheya mate❤️❤️❤️

here is ur answer

In triangle ABE
angleA + angleB= angleAEC ----------equation(1)
[angle AEC is the exterior angle of triangle ABE]


now, in triangle CED

angleAEC+angleC=angleADC----equation(2)
[angleADC is the exterior angle of triangle CED]

friend❤️❤️ angleAEC and angleDEC both are same



now put the equation(1) in equation(2)

angleAEC+angleC=angleADC
angleA+angleB+angleC=angleADC

HENCE PROVED☺️

Hope it helps u

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