Question

Question no. 7...plzz ans

Answer 1

Answer:

80 is the correct answer

Answer 2

according to figure

angle BOC = 80•

as we know the radius of the circle forms 90• angle

hence ,

angle ABO = 90•

angle ACO = 90•

angle BOC = ?

sum of all angles of quadrilateral = 360•

angle BOC + angle ABO + angle ACO + angle BOC = 360•

80• + 90• + 90• + angle BOC = 360•

260• + angle BOC = 360•

angle BOC = 360 - 260

angle BOC = 100•

so C. option is correct .