A, B & C form a triangle where
∠
BAC = 90°.
AB = 12.2 mm and CA = 8.3 mm.
Find the length of BC, giving your answer rounded to 1 DP.
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Answer:
BC=79.95
Step-by-step explanation:
8.3^2=12.2^2+B^2
68.89=148.84+B^2
68.89-148.84=B^2
78.95=B^2
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