Malia27 Malia27
  • 02-06-2021
  • Mathematics
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Find QR.

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

QR = ___​

Find QRWrite your answer as an integer or as a decimal rounded to the nearest tenth QR class=

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bhadelsimron19
bhadelsimron19 bhadelsimron19
  • 02-06-2021

Answer:

Step-by-step 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

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