The answer is A: 1/2 because if you divide the length of AB by 2, you will get the corresponding line EF.
They are 7 points away from each other.
There is two figures in this figure, a rectangle and a half circle.
area of rectangle= length * width= 10 * 14= 140
area of half circle= Pi* 1/2 * radius² = π*0.5*7²=<span>76.9690200129</span>
It simplifies down to x + 4
Hope I helped C: