Answer: 120
<u>Step-by-step explanation:</u>
Since the order of the numbers doesn't matter we can use the formula:

The last one: the arc AB is a semicircle.
a semicircle is 180 degrees
Answer:
12y
Step-by-step explanation:
-.5 or negative 1/-2
same thing just in a dec and frac
Answer:
<u>-1</u>
2
Step-by-step explanation:
(0,2) and (1,0) are the points on the line
Let (0,2) be (x1,y1) and (1,0) be (x2,y2)
slope(m)= <u>y2-y1</u>
x2-x1
=<u>1-0</u>
0-2
=<u>1</u>
-2