Please answer this correctly

3769.57

Step-by-step explanation:

the perimeter of semicircle is

P = d + πd/2

251.86 = d + (3.14d/2)

multiply both side with 2

503.72 = 2d + 3.14d

503.72 = 5.14 d

d = 98 miles

d is diameter, then the radius is 98 : 2 = 49

Area of semicircle

A = ½ π r²

A = 0.5 x 3.14 x 49²

A = 3769.57 miles²

3769.57 miles²

Step-by-step explanation:

The perimeter of the semi circle is the sum of the curve and the diameter.

Perimeter of curve

Diameter of the semi circle = 2r

Area of the curve

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²