94
274
266 A good way to do that mentally would be to make 19 into 20. 14 x 20 = 280, simple mental math. Then just subtract 14 from 280. 266
This is going to be a negative number. When you subtract 360 from 240 you will get -120 as your answer.
In the same way that you subtract and add numbers. Sometimes, though, if the answer is greater than 360 dgrees, you can subtract 360. This is because the angle measure of a whole turn and a bit is the same as the angle measure of the bit.
To find a coterminal angle, you can subtract or add multiples of 360 degrees. For the angle 534 degrees, you can subtract 360 degrees: 534 - 360 = 174 degrees. Therefore, the coterminal angle of 534 degrees is 174 degrees.
Subtract the interior angle by 360 degrees
160
They have the same name as the angles that are obtained when you subtract [multiples of] 360 degrees.
I believe there are 360 degrees in a quadrilateral. Depending on if the angles are even or not divide by four. But if they give you three angles add those and subtract that from 360. If they give you 2 angles and the other angles appear to be even. Add the two numbers that you have subtract that from 360 then divide by two...
you measure the opposite side and then subtract it of 360 degrees.
you add the three other angles and subtract that from 360
There is not a special name. You simply use the name for the angle which is left after you subtract 360 degrees from the angle.