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!!
Answer: 1917, two revolutions swept through Russia, ending centuries of imperial rule and setting into motion political and social changes that would lead to the formation of the Soviet Union.
Explanation:
An atmospheric discharge of static electricity is called lightning.
The story goes that Benjamin Franklin invented
lightning rods to
protect buildings from lightning.
Israel responded by what is termed here 'terrorist' tactics of the PLO in the 1970's by raiding PLO bases in neighboring Arab countries. It must be realized historically that Palestine used to belong to the Arab Palestinians ie it was their country and it was stolen by the British colonialists and sold to the rich Zionists for their so-called homeland. If the Israel govt really wanted to live in peace with the Palestinians and be slightly modest that they took away their country, then they wouldn't provoke them with settlements in the little land left that the Palestinians have on the Westbank and they would live in peace and harmony with them and Israel could have both Arabs and Jews living in harmony.
I’m pretty sure it’s the 2nd one :)
