Answer:
Step-by-step explanation:
The thing with the arc length formula, s = rt, is that t is the angle in radians. Ours is in degrees, so we have to change it:
36 × 
So the formula we use to solve for r is:
Multiply both sides by 5 over pi to get that
5-y/2 = 9
First, we do the inverse operation and subtract 5 from both sides.
5 - y/2 = 9
-5 -5
-y/2 = 4
Now, we do the inverse operation ( multiply by the reciprocal)
-y/2 = 4
-y/2 * -2 = 4* -2
y= -8
y=-8
Now we have our final answer: y=-8
Check our work
5 - - 8/2= 9
5+4=9
9=9
OUR ANSWER IS CORRECT! :)
Answer : 137.25
Step 1 - Convert the base of a triangle to decimal form
15 1/4 = 15.25
Step 2 - Multiply base by height
18 * 15.25 = 274.5
Step 3 - Divide 274.5 by 2
274.5 ÷ 2 = 137.25
