Question

A,B & C form a triangle where /_BAC = 90°. AB = 12.2mm and CA = 8.3mm. Find the length of BC, giving your answer rounded to 1 DP.

Answer 1

Answer:

2.2 is the rational number

Answer 2

Answer:

14.8 mm

• Step-by-step explanation:
• by using Pythagorean theorm
• ${bc}^{2} = {ab}^{2} + {ca}^{2}$

${bc }^{2} = { {12.2} }^{2} + {8.3}^{2}$

$bc = \sqrt{ {12.2}^{2} + {8.3}^{2} }$

$bc = 14.755mm$

$bc = 14.8mm$