Question

prove that AC²=AB²+BC²​

Answer 1

Answer: This can be proved by phythagores theorem.

First let us draw a perpendicular BD from B to AC.

we get three right angled triangles : ABC, BCD, and ADB

Therefore,

AB² = AC·AD , BC² = AC·CD

Adding both,

AB² + BC² = AC·AD + AC·CD

AB² + BC² = AC ( AD + CD )

Since AD+CD=AC

AB² + BC² = AC(AC)

AB² + BC² = AC²

Hence proved

Answer 2

Answer:

answer ^_^

hope it helps you