Hung Lam plans to enclose a rectangular area for his chickens in his backyard using the sides of his apartment building for 2 of the sides, as seen in the figure at left. If Hung Lam has exactly 40 feet of chicken wire, what is the largest area, in square feet, he can enclose for his chickens?

< 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⭐

ab will be equal to

answer: 24

step-by-step explanation:

7x2=14

5x2=10

10+14=24

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