Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .

Step 1) Use the area formula to find the length of the radius

A = (3.14 x r^2) / 4

3.14 = (3.14 x r^2) / 4

12.56 = 3.14r^2

r^2 = 4

r = 2 feet

Step 2) Use the perimeter formula to find the perimeter

C = ((pi x 2r) / 4) + 2r

C = ((3.14 x 4) / 4) + 4

C = (12.56 / 4) + 4

C = 3.14 + 4

C = 7.14 feet

Hope this helps! :)

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

step-by-step explanation: