Answer:
? = 30°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
48° is an exterior angle of the triangle, then
? + 18° = 48° ( subtract 18° from both sides )
? = 30°
The answer would be option C.
Hope this helps!
Do number 11 in your own way.
The answer is 1 cause 1/2 times 2 sides. Just draw a square with side lengths of 1/2