Question

n the given figure, AB is a diameter of a circle passing

through A, B, C and D. If ∠ADC = 110°, Find ∠BAC.​

Answer 1

Step-by-step explanation:

Construction: Join B and D. This forms a right triangle ADB.

From the figure, we can say that angle B is 50 deg [opposite angles in a cyclic quadrilateral are supplementary]

Consider triangle ACB.

Angle ACB is 90 deg [ angle in a semicircle is 90 deg]

Angle ABC is 50 deg

So, angle BAC is 40 deg [angle sum property of a triangle].

Angle BAC is 40 deg.

Answer 2

Answer:

<BAC = 250°

Step-by-step explanation:

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