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In rectangle PQRS, SQ = 78, PS = 30, and mPRS = 23°. Find SR.
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In rectangle PQRS, SQ = 78, PS = 30, and mPRS = 23°. Find SR.

In rectangle PQRS, SQ = 78, PS = 30, and mPRS = 23°. Find SR.-example-1
User Yessine Mahdouani
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\cos (23)=(sr)/(78)\rightarrow78\cdot\cos (23)=SR=67.20

User Tri Nguyen Dung
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