In the triangle ABC, there is a point O, OA = 3cm, OB = 4cm, OC = 5cm, find (1) ∠ AOB, ∠ AOC degree (2) find the respective area of triangle AOB, AOC, BOC emergency

OA = 3cm, OB = 4cm, OC = 5cm, triangle ABC is uncertain, please have a look at the original question

⊙ o is the circumscribed circle of △ ABC, ab = AC, if OA = 5cm, the distance from O to BC is 3cm, then the length of AB is

4 times root 5
Connection Bo Bo = 5
Because AB = AC
So the triangle ABC is an isosceles triangle with BC as the base
For high AE on the edge of BC, AE = 8, OE = 3
According to Pythagorean theorem be = 4
AB = 4 times root 5

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