Answer:
radius = 5 in
Step-by-step explanation:
Using the formula for calculating the area (A) of a circle
A = πr² ( r is the radius )
here A = 78.5, hence
3.14r² = 78.5 ( divide both sides by 3.14 )
r² =
= 25 ( take the square root of both sides )
r =
= 5
Free points, sorry i have to answer questions to ask again
Answer:
20*pi/3
Step-by-step explanation:
Arc length = Radius * central angle of the arc (in radians). The figure shows that the unit arc angle is 4*pi/3. Multiply that by the 5 ft results to 20*pi/3.
Answer:
Step-by-step explanation:
4(2x-1)=3x+5-x
8x-4=3x+5-x
8x-4=2x+5
6x-4=5
6x=9
x=3/2