A hiker leaves base camp in Banff National Park and travels 20for 0.7 km. Then the hiker travels 65 until he is directly west of the camp. How far is the hiker form the
camp to the nearest tenth of a kilometer?

the answer is 15% decrease

< 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⭐

true

step-by-step explanation:

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