Question

A triangle has sides with lengths of 2 centimeters, 4 centimeters, and 5 centimeters. Is it a right triangle?

Answer 1

Answer:

• No

Step-by-step explanation:

Use Pythagorean to verify:

• 2² + 4² = 5²
• 4 + 16 = 25
• 20 = 25

As we see the equation is not true, so the answer is no

Answer 2

Let's use Pythagorean theorem to verify

$\\ \sf\longmapsto H^2=P^2+B^2$

$\\ \sf\longmapsto 5^2=4^2+2^2$

$\\ \sf\longmapsto 25=16+4$

$\\ \sf\longmapsto 25\neq 20$

Not a right triangle