Math, asked by Shanishukla, 1 year ago

Question is given the pic

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PunyaveeMohan: so according to it, I answered 130°

Arceus11: Nah, that must be something else. You will have to look closely

PunyaveeMohan: Arceus11 please confirm the answer

Arceus11: i have posted the solution

PunyaveeMohan: okaay

varaddaithankar: ur property is right but it will hold when O,C,E,D will lie on a single circle for angle sum property

Arceus11: V is right

PunyaveeMohan: yep.. sorry.. I connected it with some different thing

varaddaithankar: Its ok But I won the bet :)

PunyaveeMohan: yep

Answers

Answered by Arceus11

Answer:

$\textcolor {red}{(2) 65°}$

Step-by-step explanation:

Since angle inscribed in an arc is half the angle subtended at the centre,

$\angle CBD= \frac{1}{2} \angle COD\\\angle CBD= 25°\\\text{ In triangle BCE, angle BCE is 90°.}\\\implies \angle CEB+ \angle CBD =90°\\\implies 25+ \angle CEB=90\\\implies \angle CEB=65°$

varaddaithankar: Thats correct 65

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