Questions: Question 20 of 25 (1 point) Question Attempt: 1 of 1
Are the triangles below acute, obtuse, or right?
Triangle A Triangle B Triangle C Triangle D
------------
Acute Obutse Right Acute Obutse Right Acute Obutse Right Acute Obutse Right
Transcript text: Exam 2
Question 20 of $\mathbf{2 5}$ (1 point) I Question Attempt: 1 of 1
Are the triangles below acute, obtuse, or right?
\begin{tabular}{|c|c|c|c|}
\hline Triangle A & Triangle B & Triangle C & Triangle D \\
\hline Acute
Obtuse
Right & Acute
Obtuse
Right & Acute
Obtuse
Right & Acute
Obtuse
Right \\
\hline
\end{tabular}
Solution
Solution Steps
Step 1: Classifying Triangle A
For Triangle A with sides \(3\), \(4\), and \(5\):
Calculate \(3^2 + 4^2 = 9 + 16 = 25\)
Compare with \(5^2 = 25\)
Since \(3^2 + 4^2 = 5^2\), Triangle A is classified as a Right triangle.
Step 2: Classifying Triangle B
For Triangle B with sides \(5\), \(12\), and \(13\):
Calculate \(5^2 + 12^2 = 25 + 144 = 169\)
Compare with \(13^2 = 169\)
Since \(5^2 + 12^2 = 13^2\), Triangle B is classified as a Right triangle.
Step 3: Classifying Triangle C
For Triangle C with sides \(7\), \(24\), and \(25\):
Calculate \(7^2 + 24^2 = 49 + 576 = 625\)
Compare with \(25^2 = 625\)
Since \(7^2 + 24^2 = 25^2\), Triangle C is classified as a Right triangle.
Step 4: Classifying Triangle D
For Triangle D with sides \(8\), \(15\), and \(17\):
Calculate \(8^2 + 15^2 = 64 + 225 = 289\)
Compare with \(17^2 = 289\)
Since \(8^2 + 15^2 = 17^2\), Triangle D is classified as a Right triangle.
Final Answer
All triangles A, B, C, and D are classified as Right triangles. Thus, the final answer is:
\[
\boxed{\text{Triangle A: Right, Triangle B: Right, Triangle C: Right, Triangle D: Right}}
\]