Question

In the adjoining figure, AB is a diameter of the circle. If
AC = BC, then 4CAB is equal to
kb) 60°
c) 90
(d) 45​

Answer 1

Answer:

d) 45°

Step-by-step explanation:

hope it helps you.

Answer 2

Answer:

⇒ In △ABC,

⇒ ∠BCA=90

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[ Angle inscribed in semi-circle ]

⇒ AC=BC [ Given ]

∴ ∠ABC=∠CAB [ Opposite angles of equal sides are equal ]

∴ ∠CAB+∠ABC+∠BCA=180

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∴ ∠CAB+∠CAB=90

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=180

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∴ 2∠CAB=180

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−90

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∴ 2∠CAB=90

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∴ ∠CAB=45

o