All the sides add like a rectangle with two sides measuring 4 and two measuring 2 so you would add 4+4+2+2=12
Answer:
75%
Step-by-step explanation:
900 /1200= .75=75%
The triangle angle sum theorem states that the 3 angles within the triangle must have a sum that equals 180 degrees.
F+G:

Then, add the elements that occupy the same position:

Solve

So, we find the element at address h31:

In this case, position h31 is - 8.0