Question

PLEASE ANSWER ITS THE LAST QUESTION!!

A, B & C form a triangle where
∠
BAC = 90°.
AB = 8.4 mm and CA = 7 mm.
Find the length of BC, giving your answer rounded to 1 DP.

Answer 1

The length of BC would be 12.2 mm.

Explanation:

Given,

In triangle ABC,

∠BAC = 90°,

Thus by the Pythagoras theorem,

We have,

AB = 9.6 mm and CA = 7.6 mm,

By substituting the values,

Explanation: