Please answer this correctly

Answer

The area of the quarter circle = 254.34 m²

Step-by-step explanation:

If the perimeter of a quarter circle = 128.52 m

r + r + 1/4 * 2pi*r = 128.52 m

2r + 1/2r * pi = 128.52 m

r * ( 2 + 1/2 * pi ) = 128.52 m

r * ( 4 + 1 * pi ) = 128.52 m

r * ( 4 + 3.14 ) = 128.52 m

r * ( 7.14 ) = 128.52 m

7.14 * r = 128.52 m

Divide left and right of the equal sign by 7.14

7.14 / 7.14 * r = 128.52 / 7.14

r = 128.52 / 7.14

r = 18 m

Area full circle = r² * pi

18² * pi

324 * pi

We need to calculate a quarter part of the area of the full circle, so

1/4 * 324 * pi

81 * pi

81 * 3.14

254.34 m²

The area of the quarter circle = 254.34 m²

i will pick c put check it over to be sure

step-by-step explanation:

answer: e 9, 5.75

step-by-step explanation:

step 1

find the variation ab in the x coordinate

delta x=(x2-x1)=10-> 8 units

find the variation ab  in the y coordinate 

delta y=(y2-y1)=6-> 2 units

step 2

find the coordinates point c

  x coordinate 

cx=ax+delta x*2/> cx=2+8*(2/> cx=3

  y coordinate 

cy=ay+delta y*2/> cy=4+2*(2/> cy=4.25

the coordinates of point c are (3,4.25)

step 3

find the coordinates point d

  x  coordinate 

dx=ax+delta x*4/> dx=2+8*(4/> dx=4

  y  coordinate 

dy=ay+delta y*4/> dy=4+2*(4/> dy=4.5

the coordinates of point d are (4, 4.5)

step 4

find the coordinates point e

  x  coordinate 

ex=ax+delta x*4/> ex=2+8*(6/> ex=5

  y  coordinate 

ey=ay+delta y*4/> ey=4+2*(6/> ey=4.75

the coordinates of point e are (5, 4.75)

step 5

find the coordinates point f

  x  coordinate 

fx=ax+delta x*4/> fx=2+8*(8/> fx=6

  y  coordinate 

fy=ay+delta y*4/> fy=4+2*(8/> fy=5

the coordinates of point f are (6,5)

step 6

find the coordinates point g

  x  coordinate 

gx=ax+delta x*4/> gx=2+8*(10/> gx=7

  y  coordinate 

gy=ay+delta y*4/> gy=4+2*(10/> gy=5.25

the coordinates of point g are (7,5.25)

step 7

find the coordinates point h

  x  coordinate 

hx=ax+delta x*4/> hx=2+8*(12/> hx=8

  y  coordinate 

hy=ay+delta y*4/> hy=4+2*(12/> hy=5.5

the coordinates of point h are (8,5.5)

step 8

find the coordinates point i

  x  coordinate 

ix=ax+delta x*4/> ix=2+8*(14/> ix=9

  y  coordinate 

iy=ay+delta y*4/> iy=4+2*(14/> iy=5.75

the coordinates of point i are (9,5.75)

- r3ktforgood ☕