Answer: x = 18
Step-by-step explanation:
Exterior Angles Theorem is used.
The exterior angle of a triangle is equal to the 2 opposite interior angles.
Therefore, 65+78=143°, since 65 and 78 are the 2 opposite interior angles.
So, the answer is 143°
Hey there!
24/40 in simplest form is 3/5
All you have to do is see what number can go in to each of them evenly, and is the highest one, so for this it is 8.
Hope I was able to help!