Suppose the length and the width of the sandbox are doubled. the length of the sandbox is 10 and the width is 6. a. find the percent of change in the perimeter. b. find the percent of change in the area.

< 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⭐

sine

step-by-step explanation: