Answer:
Let "a", "b" and "с" be sides of the triangle ("с" is the longest side).
The triangle will be:
right if a² + b² = c²
аcute if a² + b² > c²
obtuse if a² + b² < c²
a.
a=3, b=4 and c=5
a² + b² = 3² + 4² = 9 + 16 = 25 and c² = 5² = 25
25 = 25 ⇒ right triangle.
b.
a=5, b=6 and c=7
a² + b² = 5² + 6² = 25 + 36 = 61 and c² = 7² = 49
61 > 49 ⇒ аcute triangle.
c.
a=8, b=9 and c=12
a² + b² = 8² + 9² = 64 + 81 = 145 and c² = 12² = 144
145 > 144 ⇒ аcute triangle.
Explanation:
Mark brainliest please!!
By using ordinary language to describe the events surrounding the nose's disappearance arrived at this answer after reading a portion o f the story involving the disappearance of the nose. "But, to his unbounded astonishment, there was only a flat patch on his face where the nose should have been! Greatly alarmed, he got some water, washed, and rubbed his eyes hard with the towel. Yes, the nose indeed was gone! He prodded the spot with a hand—pinched himself to make sure that he was not still asleep. But no; he was not still sleeping. Then he leapt from the bed, and shook himself. No nose! Finally, he got his clothes on, and hurried to the office of the Police Commissioner. "In the above quote, ordinary language was used. It would seem as though losing a nose is no big deal for the character. Instead, he is more concerned of going to the office. His reaction is quite unbelievable.
I believe it’s trueeeeeeeeee
68000 square km
north aral sea dried up
