It is easy try to figure it.
If you did not figure it out the answer is
A. I think is 24 not sure.
B. I think it is 18 not sure.
Answer:
1.256, 1.265, and 1.268
Step-by-step explanation:
Answer:
p=1/2*3.14+d
1/2*3.14*19.5=30.615
=30.615+39
=69.615
=69.6
Step-by-step explanation:
since it's half a circle we take the formula of acricle to be half
we know that
the area of a circle is equal to

where
r is the radius of the circle
Step 1
Find the radius for 

Solve for r

substitute the value of area

Step 2
Find the radius for 

Solve for r

substitute the value of area

therefore
the radius r

<u>the answer is the option A</u>
