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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.

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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4 votes
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.

User Kelsey
by
7.7k points

1 Answer

3 votes

Answer:


Pythagoras \ theorem,\\BC^2 = AB^2 + AC^2 = 12.2^2 +8.3^2 =217.73\\\\BC =14.8mm

User Matt Sheppard
by
8.5k points
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