Question

In fig,Angle ABC 25° ,find angle ACO=​

Answer 1

Answer:

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Given : ∠ABC = 25°  

To Find : ∠AOC  

Solution:  

AB & CB are tangents  

Hence ∠OAB = LOCB = 90°  

∠ABC = 25°  

∠AOC = ?  

Sum of angles of quadrilateral AOCB =  360°  

=> ∠AOC + 2OCB + ∠ABC + ∠OAB =  

360°  

=> ∠AOC + 90° + 25° + 90° = 360°  

=> ∠AOC = 155°

Answer 2

Answer:

ACO=165°

Step-by-step explanation:

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