The formula to solve the area of a circle is 3.14 (pi) times the radius (1/2 of the circumference) so 3.14 x 8 = 25.12 so your answer is 25.1
Divide 7 by 19.
The answer is 0.368421053
If you have any further questions feel free to ask.
Hope this helps.
An angle that is more than 90 degrees but less than 180 degrees
It will be 0.2 as a decimal. it will be 20% as a percentage
