109k views
5 votes
Which one is a right triangle and not a right triangle ​

Which one is a right triangle and not a right triangle ​-example-1

2 Answers

2 votes

10m 11m 15m not a right triangle

User Danyal Sandeelo
by
4.7k points
1 vote

Answer: 15, 8, 17

Explanation:

In order to be a right triangle, the side lengths must satisfy Pythagorean Theorem: a² + b² = c² ; where a and b are the legs (smallest side lengths) and c is the hypotenuse (largest side length).

Let's try 10, 11, 15:

10² + 11² = 15²

100 + 121 = 225

221 = 225

FALSE → not a right triangle

Let's try 15, 8, 17:

15² + 8² = 17²

225 + 64 = 289

289 = 289

TRUE → is a right triangle!

User Abhishek Galoda
by
5.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.