well it a obtuse angle so 160 degree
Answer:
150°
Step-by-step explanation:
We know each angle in a equilateral triangle is 60° and that of a rectangle is 90° . So ,

To find the parameter you have to add the length and the width and multiply by two
And your example long is the length and wide is the width so add it and times two answer is seven
Because the semi circle is too which is what it's inside but the answer is still seven
Answer:
the third option. x is a real number