Question

A, B & C form a triangle where
∠
BAC = 90°.
AB = 14.4 mm and CA = 14.2 mm.
Find the length of BC, giving your answer rounded to 1 DP.

Answer 1

Answer:

by pythogros theorem

Step-by-step explanation:

AC²=AB²+BC²

CB²=AB²+AC²

$cb {}^{2} = {14.4 }^{2} + {14.2 }^{2}$

$cb {}^{2} = {14.4 }^{2} + {14.2 }^{2}$

cd²=207.36+201.64

cd²=409

$cd = \sqrt{409 }$