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Find QR.

Write your answer as an integer or as a decimal rounded to the nearest tenth.

QR = ___​

Find QR. Write your answer as an integer or as a decimal rounded to the nearest tenth-example-1
User Datum Geek
by
7.7k points

1 Answer

7 votes

Answer:

Explanation:

take 64 degree as reference angle

using cos rule

cos 64=adjacent/hypotemuse

0.43=QR/10

10*0.43=QR

4.3=QR

User PureGero
by
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