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OpenStudy (anonymous):
In triangle PQR, angle QPR is acute, PQ = 10 cm and PR = 14 cm. The area of triangle PQR is 48 cm. Calculate angle QPR and show that it rounds to 43.3' degrees, correct to 1 decimal place
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OpenStudy (anonymous):
Please help
OpenStudy (anonymous):
@.Sam.
OpenStudy (abb0t):
Start by drawing your triangle. Can you do that?
OpenStudy (anonymous):
Yes....just give me a moment
OpenStudy (abb0t):
|dw:1379137375810:dw|
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OpenStudy (anonymous):
Thank you very much....what next
OpenStudy (anonymous):
@abb0t
OpenStudy (anonymous):
thats easy just do 1/2 times both sides and sin angle in between . 14*10/2 *sinx = 48
OpenStudy (anonymous):
Sorry that does not make sense.......could u explain a bit more plz
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