3 years ago

NOTE: Angles not necessarily drawn to scale.

Mathematics

2 answers:

Anastasy [175]3 years ago

7 0

The answer is 13!! :)

AVprozaik [17]3 years ago

3 0

The entire plane is 360°
Each side (top & bottom) is 180°
Each 1/4 section is 90°
With the information given that the angle opposite to x is 77°
And the total angle of that quadrant is 90°
By using the laws of angles.

Then you can calculate 90°-77°=x
So x=13°

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Shtirlitz [24]

Answer:

see explanation.

Step-by-step explanation:

2(10 * 4 * 7) is a surface area.

7 * 4 * 10 is volume.

2(10 * 4 + 10 * 7 + 4 * 7) is surface area.

10 + 4 + 7 is neither.

2 * 7 * 4 + 2 * 10 * 7 + 2 * 4 * 10 is neither.

hope this helps.