Circle Theorem please help me

[wicked dust]

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[clear crescent]

alright

lets draw out the diagonals (spare me for the bad drawing)

BCA is given to be 59

we see that arc AB subtends both BCA and ADB in the same segment, thus they are equal

we also can see that ABCD is a cyclic quadraliteral, so A+C=180 but A=62 so C=118

and BCA+ACD = C but BCA=59 and C=118 so 59+ACD=118 therefore ACD=59

@tacit epoch can you continue?

[tacit epoch]

OHH

YES I GOT IT NOW

thank you so much

so both ABD AND ADB should be 59

proving its isosceles

thank you for your help!!

[clear crescent]

no problem

you can use +close if youre done now

[tacit epoch]

+close