I think the rule has something to do with adding. I noticed that when the input was at 0 the output was 20, When the input was 15 the output was 5, when the input was 8 the output was 12, and so on. I think the rule is, no matter what number is in the input or the output, it must equal 20.
Hope This Helps!
Answer:
See below ~
Step-by-step explanation:
<u>Question #8</u>
- Area = 10 x 11.7
- Area = <u>117 m²</u>
<u></u>
<u>Question #10</u>
- Area = 11 x 11
- Area = <u>121 m²</u>
Answer:

Step-by-step explanation:
Surface area of this shape = area of 2 triangles + area of 3 rectangles

The reference angle is
pi/3.
At 180 it would be 9pi/3 so going past that is 10pi/3.