Question

A triangle with side lengths of 5 meters, 7 meters, and 9 meters

Answer 1

Answer:

It is not a right angled troagle

Step-by-step explanation:

Given

Sides: 5m, 7m and 9m

Required

Is it a right angled triangle?

A triangle is right angled if:

$a^2 = b^2 + c^2$

Where a is the longest side and b,c is any of the other.

So, we have:

$9^2 = 5^2 + 7^2$

$81 = 25 + 49$

$81 \neq 74$

Since they're not equal then it is not a right angled troagle