Question

Is the triangle formed a right triangle? If it is, select all that applies. If not, select "Not a right triangle".

A It's a right triangle because 3 + 5²=6

B It's a right triangle because 9 +25 equals 36

C It's a right triangle because a² + b² = c

D Not a right triangle

E It's a right triangle because there's a 90-degree angle

F It's right triangle because the legs are on the right side

(It is a right triangle)

Choose all that are true

Answers

GPT-4o mini
To determine if the triangle is a right triangle, we can use the Pythagorean theorem, which states that for a right triangle with legs \(a\) and \(b\) and hypotenuse \(c\), the equation \(a^2 + b^2 = c^2\) must hold true.

Let's analyze each option:

A. **It's a right triangle because 3 + 5²=6**: This statement is incorrect. \(3 + 5^2 = 3 + 25 = 28\), which does not equal 6.

B. **It's a right triangle because 9 + 25 equals 36**: This statement is correct. If we interpret \(9\) as \(3^2\) and \(25\) as \(5^2\), then \(3^2 + 5^2 = 9 + 25 = 36\), which is \(6^2\). This satisfies the Pythagorean theorem, indicating a right triangle.

C. **It's a right triangle because a² + b² = c**: This statement is incorrect. The correct relationship should be \(a^2 + b^2 = c^2\), not \(c\).

D. **Not a right triangle**: This option is incorrect since we have established that it is a right triangle.

E. **It's a right triangle because there's a 90-degree angle**: This statement is valid since the definition of a right triangle includes having a 90-degree angle.

F. **It's a right triangle because the legs are on the right side**: This statement is subjective and does not provide a valid mathematical justification for a right triangle.

Based on the analysis, the true statements are:

- B (It’s a right triangle because 9 + 25 equals 36)
- E (It’s a right triangle because there’s a 90-degree angle)

So the correct selections are **B** and **E**.