Answer:
3.49 radians
Step-by-step explanation:
The arc length formula is s = rФ, where r is the radius and Ф is the central angle. We know s and r and need to calculate Ф.
From s = rФ we get Ф = central angle = s/r
Here, that central angle Ф is (31.4 cm) / 9 cm = 3.49 radians
Answer:
a= 
Step-by-step explanation:
to find a isolate it on one side by taking 1/3 by subtraction to the other side
a=
-
= 
Download Socratic it'll do everything
The Pyhtagorean triple for a 45-45-90 is 
with the last measure being that of the hypotenuse since it is the longest. If the hypotenuse is given as

then in equality form we could rewrite as
. We would divide both sides by the square root of 2 and solve for x, the length of each leg of that triangle. Each leg measures 22.