For most of these questions, all you would have to do is add the angles together and or subtract the larger angle from the smaller one to find the other angle. So in the first case.
You would add the angles, 26 degrees and 60 degrees to find the angle KLM which is about 90 degrees a right angle, in this case it would be 86 degrees.
Similarly, for the other question, take the larger angle, 145 degrees and subtract 61 degrees to solve for the angle that will also add to give 145 degrees,in this case it would be 84 degrees.
Answer: 918km^2
Step-by-step explanation:

Let x be the new dimension of the area;


Answer:
3x^3 + 6x^2 + 15x + 36 + 62 / 3x^4 +3x^2 +6x + 10
Step-by-step explanation:
Use Syenthetic Division
Answer:
c) 5.39
Step-by-step explanation:
The digit that is in the hundredths place is the 8. (The hundredths are two digits to the right of the point).
The thousandths in this case would be the 9, since the 9 is close to the next hundredth, the nearest hundredth would be 9 (adding 1 to the 8), therefore the number would be 5.39