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Match each side with its opposite angle - Online practice 1
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
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Triangle ABC: b=5 cm and c=7 cm enclose angle A=60 degrees; a is opposite A. Separately, triangle DEF has D=30 degrees, E=45 degrees and opposite side d=2 cm. Use cos60=1/2, sin30=1/2, sin45=sqrt(2)/2. Keep exact forms; sqrt means non-negative square root.
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