A,B & C form a triangle where BAC = 90° AB = 11.9 mm and CA = 2.7 mm. Find the length of BC, giving your answer rounded to 1 DP

asked Jun 7, 2022 232k views

3 votes

A,B & C form a triangle where BAC = 90°

AB = 11.9 mm and CA = 2.7 mm.
Find the length of BC, giving your answer rounded to 1 DP

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5 votes

Answer:

12.2

Explanation:

BC = √ABsq + √CAsq

BC = √11.9sq + √2.7sq

BC = √141.6 + √7.3

BC = √148.9

BC = 12.2

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