Ab is a diameter of a circle with the center o. c is a point on the circumference of the circle, such that ∠cba = 32°. find ∠cab.
a) 28°
b) 32°
c) 58°
d) 96°

∠CAB = 58°. Therefore, The correct option is C) 58°

Step-by-step explanation:

For better understanding of the solution, see the attached figure of the problem :

In ΔCOB, OC = OB ( Radius of the same circle)

⇒ ∠OCB = ∠OBC ( Angles opposite to equal sides are equal)

Since, ∠OBC = 32°

⇒ ∠OBC = 32°

Now, Using angle sum property,

⇒ ∠OCB + ∠OBC + ∠BOC = 180°

⇒ 32° + 32° + ∠BOC = 180°

⇒ ∠BOC = 116°

Now, ∠AOC + ∠BOC = 180° ( Linear pair angles sum is supplementary)

⇒ ∠AOC = 180 - 116

⇒ ∠AOC = 64°

Now, In ΔAOC, OA = OC ( Radius of same circle)

⇒ ∠OCA = ∠OAC ( Angles opposite to equal sides are equal)

Using angles sum property,

∠OCA + ∠OAC + ∠AOC = 180°

⇒ 2∠OAC = 180 - 64

⇒ ∠OAC = 58°

Hence, ∠CAB = 58°

the answer is simply just 6n add the two together as they have an n

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step-by-step explanation: