Nelson wants to prove the Pythagorean Theorem by dividing A PQR shown below into two smaller triangles and setting up proportions that compare the smaller triangles' side lengths to those of A PQR. To divide A PQR, he will draw a line segment from vertex Q to side PR. Which of the following statements is ture about the line segment he should draw?​

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Step-by-step explanation:

step-by-step explanation:

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< 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

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