Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Discover precise answers to your questions from a wide range of experts on our user-friendly Q&A platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.
Sagot :
9514 1404 393
Answer:
obtuse triangle
Step-by-step explanation:
The two shortest sides are 7, 15. Their sum is 7+15 = 22, which is longer than the longest side, so these lengths will form a triangle.
__
The "form factor" can be computed to be ...
a^2 +b^2 -c^2 . . . . . where c = longest side
This value is ...
7^2 +15^2 -21^2 = 49 +221 -441 = -167
This negative value indicates the largest angle is more than 90°, so the triangle is obtuse.
_____
Additional comment
This "form factor" has the same sign as the cosine of the largest angle. The cosine is negative for angles greater than 90°. The cosine of the angle is ...
"form factor"/(2ab) = -167/210
largest angle = arccos(-167/210) ≈ 142.678°
Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Keep exploring Westonci.ca for more insightful answers to your questions. We're here to help.