Answer:
First you need to divide 1.6 by 2 to get .8 then multiply
.8 x 6 = 4.8
.8 x 8 = 6.4
Then multiply 4.8 by 6.4 and get 30.72
Answer:
8
miles or 25.133 miles
Step-by-step explanation:
your radius is 4 miles.
The area of a circle is A= 
Therefore, the area of this circle is
, or 16
Half of this area, because what you're looking for is a semi-circle, is:
8
(exact) or 25.133 (rounded) miles.
Answer:
x = 3.6
Step-by-step explanation:
By the Postulate of intersecting chords inside a circle.

20 x 18 x 5= 1,800
20 times 18 equals 360, then you mutiply 5 and get 1,800