Work out the lengths of sides a and b. Give your answers to 1 decimal place.
17 cm
a
a
b
8 cm
12 cm
5 cm

No solution is possible since you failed to provide the necessary information

Step-by-step explanation:

< 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⭐

its a straight line parallel to the time axis