The unknown angle would be 79 degreese.
Answer:
Well if it volume it would be 16 × 2 which is 32 then that would 32 × 16=512
but you wrote area so it would be 16
The answer is 223.75 because you multiply 12.5 and 17.9
Answer:
136 
Step-by-step explanation:
Well if you find the lateral area (the area of the rectangles on the sides) to get 112, so you just need to add that to the triangles and for those (they add up to 36) you can just use the formula for the area of a triangle, which is
.
Hope this helps :)