Im not sure for B but A makes a square. If you have graph paper you can plot them and it should make a normal square. Hope that helps.
Answer: I need a picture to find out ;-;
Step-by-step explanation:
90 = right angle
Any angle bigger than 90 is obtuse and any angle smaller than 90 is acute
9pi/8 = 8pi/8 + pi/8 = pi + pi/8
12 + pi - 9pi/8 = 12 + pi - pi - pi/8
Hi!
<u>For your first question:</u>
When it looks like this, with an exponent, then parentheses, then an exponent, we should multiply the exponents.


^10
<em>P.S. As for your second question, I believe I already answered that on your other question!</em>