Ascale drawing of a kitchen is shown below. the scale is 1 : 20.

a rectangle is shown. the length of the rectangle is labeled 4 inches. the width of the rectangle is labeled 5 inches.

show your work to determine the area of the room in square feet.

< 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⭐

faster, im not sure why but i know it is faster