Question

In fig,O is the centre of circle .Find angle BAC

Answer 1

ⓗⓔⓨ ⓕⓡⓘⓔⓝⓓ

ⓗⓔⓡⓔ ⓘⓢ ⓨⓞⓤⓡ

ⓐⓝⓢⓦⓔⓡ



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Angle BOC = 360-(100+70)

Angle BOC = 190°


Now , Angle BAC = 1/2 BOC = 190/2 = 95°


$hope \: it \: helps$

Answer 2

• OA = OB as radii .

So  ∠ B = ∠BAO

   = (180 - 70)/2 = 110 / 2 = 55°

• AO = CO as radii.

So ∠C = ∠CAO

  = ( 180 - 100 )/2 = 80/2 = 40 °.

• So measure of ∠ BAC = ∠BAO + ∠CAO = 55 + 40 = 95°.

Thank u .