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!!
U should put a picture bro I cant read this Correctly
An ocean current is a continuous movement of water in the ocean in some direction - this means that the water flows at a similar speed and direction despite the fact that it's not the same water - i.e. there is a water exchange in the current. The currents are caused by such factors as temperature and salinity of water.
ANSWER:
Rivers are very important for a country's economy as many trades take place through rivers .
Also many new ideas and comodities spread across the eorld through sea routes .
Also ideas of new technologies,achievements in medical science get across the world through rivers and seas.
Even sometimes some special things that need to taken from one country to another with high security are taken through rivers.
There can be many more reasons for rivers being important for a country's economy.
HOPE IT HELPS!!!!
PLEASE MARK BRAINLIEST!!!!!
The crust is the thin layer
