Answer:
x=110
Step-by-step explanation:
Since the sum of the interior angles of a trapazoid is 360, all you have to do is add the angles given and subtract that by 360, which gets you 110.
If you want to form a square of 7500 soldiers, the side of the square must be
soliders.
But since you cannot have 0.6 solider, the general needs to find the closest perfect square to the number 7500 which is less than 7500.
That number is 7396 which when square rooted gives 86 soliders on the side.
Subtract 7396 from 7500 and get how many soliders were left out,

Hope this helps :)
angle of triangle is 180°
the angle beside 70° is 70°also because it has mention it is an isosceles triangle so that the two angle must be same
third angle will be 180°-70°-70°=40°
Where is the rest at that’s only 1