A, B, C form a triangle where BAC=90 AB=12.9mm and CA=1.1mm Find the length of BC giving your answer rounded to 1dp
Answers
Answer:
Step-by-step explanation:
Answer:
The length of BC would be 12.2 mm.
Step-by-step explanation:
Given,
In triangle ABC,
∠BAC = 90°,
Thus by the Pythagoras theorem,
BC^2=AB^2 + CA^2
We have,
AB = 9.6 mm and CA = 7.6 mm,
By substituting the values,
BC^2 = 9.6^2 + 7.6^2 =92.16+ 57.76= 149.92
\implies BC = 12.24418\approx 12.2\text{ mm}
Step-by-step explanation:
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