First you must know that the interior angles of a triangle add up to 180 degrees. Once you recognize that, you can add 2x+3x+4x=180. Then you just solve for x.
2x+3x+4x=180 becomes 9x=180.
Then you divide both sides by 9 and x=20 is your answer.
For future reference, if you need to solve for the angles after finding x, you would just plug in the 20, giving you three angles 40, 60, and 80.
The answer is 8
Hope this help and plz give me points thank u :)
There’s probably an easier way to do it like with the equation to find the area of a trapezoid but i did it this way bc it’s easier for me
i split the trapezoid into a triangle and a square
with the pythagorean theorem i found the missing side length to find the area of the square (length X width)
then found the area of the triangle (base X height divided by 2)
THE ANSWER IS 68.9 CM
Answer:
120 degrees move in 10 hours
-7x < 102
First step is to divide both sides by -7. Because we are dividing by a negative number, we have to flip the signs.
-7x < 102
x > -102/7
The only one of your answer choices that is greater than -102/7 is A. 20.
Hope this helped!