Answer:

Step-by-step explanation:
First, remember that the maximum degree of an angle totals 360°.
Since we already have 294°, this means that what is left must total
.
Therefore, this means that our two smaller angles must equal 66°. So:

Solve for x. Add on the left:

Subtract 8 from both sides. Therefore, the value of x is:

18. 17.9
19. 21.1
20. I cant see the numbers sorry; if the sides are 6, √85 than it should have an angle of 40.6
Answer:
a rectangular prism
Step-by-step explanation:
consists of 6 faces which are rectangles
42 because it is all of the sides have to be added up for the perimeter so the formula would be 14+14+7+7.