Answer:17-10n
Step-by-step explanation:
The circumference or perimeter of the circle has the formula 2*pi*r, where r is the radius of the circle. This could then be easily calculated:
C = 2*pi*r
53.38 = 2*3.14*r
53.38 = 6.28r
r = 53.38/6.28
r = 8.5 ft
Thus, the radius of the circle has a length of 8.5 feet.
Without the image, I assume the two semicircles are on each end of the rectangle.
Rectangle; A = lw
A = 98 x 76
A = 7,448 square meters
Put the two semicircles together to form a circle; A = π

A = (3.14)(

)
A = 3.14 x 76 = 5,776 square meters
7,448 + 5,776 = 13,224 square meters
Answer:
The answer is 75 degrees.
Step-by-step explanation:
The explanation is that the the supplementary angle to 80 is 100 since a straight line has an angle of 180, now the 100 degree angle is congruent to the angle x + 25 which means that x + 25 is equal to 100 so x is 75