Which event was a result of the battle of midway?

The first thing you need to understand is that the American Navy won a battle. It did not win the war by succeeding at Midway. The Japanese did not surrender (Making B incorrect), nor was the Japanese Navy taken out of the war (making D incorrect). The coral sea battle took place in May and it was the first tactical victory by the Allies in the Pacific making A wrong.

Conclusion: A B D are all incorrect. 

So what did happen? The Japanese had been defeated in the greatest sea battle of WWII. They were not completely taken out, but after that the initiative had been passed from the Japanese to the  Americans.

What had been a defensive war for America now became an offensive one.

C 

1.Polygon

TriangleRightObtuseAcuteEquilateral

Step-by-step explanation:

Notice that

1. A triangle is a Polygon.

2. The triangle can be classified into Right, Obtuse, and Acute triangles.

3. An acute triangle is a triangle in which each angle is a acute angle. All acute triangle angles are less than 90 degrees. For example, an equilateral triangle is always acute, since all angles( which are 60) are all less than 90.

Taking into account the above, we have that the concept map can be filled.

Then, the unlock code is PTROAE