Question

A, B & C form a triangle where
∠
BAC = 90°.
AB = 9.6 mm and CA = 7.6 mm.
Find the length of BC, giving your answer rounded to 1 DP.

Answer 1

hope it helps...........

Answer 2

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,

$BC^2 = 9.6^2 + 7.6^2 =92.16+ 57.76= 149.92$

$\implies BC = 12.24418\approx 12.2\text{ mm}$