A , B and C form a triangle where ∠ B A C = 90 ∘ . A B = 2.7 mm and B C = 16.8 mm. Find the length of A C , giving your answer rounded to 1 decimal place.
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Step-by-step explanation:
Angle BAC=90°
Hence angle A=90°
Hence BC is hypotenuse.
BC^2=AB^2+AC^2
16.8^2=2.7^2+AC^2
282.24=7.29+AC^2
AC^2=274.95
AC=16.58mm
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