Answer: No, Ariel should have added 9^2 and 12^2 and compared that to 15^2.
Explanation:
Ariel completed a work to show that a triangle whether a triangle with side lengths of 9, 15, and 12 form a right triangle.
Ariel added 9 squared + 15 squared = 12 squared. 81 + 225 = 144 and concluded that 306 is not-equal to 144 and hence, it is not a right angle triangle.
To know whether it's a right angle triangle, we had the square of the two lowest figures together if it will be equal to the square of the largest figure which is called the hypotenuse.
9 squared + 12 squared =
81 + 144 = 225
15 squared= 15 × 15 = 225
So it's a right angle triangle since
9^2 + 12^2 = 15^2
The black activists who encourage the African Americans to
fight for their rights by building up is Martin Luther King as he was an
activist and a leader in which a movement called the civil right movements
started as a way of providing and fighting for equal rights.
1939 for the brits and Germans
The French Revolution was a timeframe in France when the individuals toppled the government and assumed responsibility for the administration. When did it occur? The French Revolution kept going 10 years from 1789 to 1799. It started on July 14, 1789 when progressives raged a jail called the Bastille.