Talia took the bus from her home to the bank and then walked back to her home along the same route. the round trip took 0.9 hours total. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. use the table to complete these statements. the rate of trip 2 is km/h. the time of trip 1 is hours.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

what level of math? also i don't need to be paid if i can you.