19 Draw a segment [AC] with AC = 15 cm.
Place the points 0 and F on this segment such that AO =
OF = 3 cm
On the perpendicular at O to (AC), place a point B such
that OB = 6 cm.
1° Prove that AB = 3V5 cm and that BC = 6V5 cm.
2° Prove that (AB) and (BC) are perpendicular.
3° Draw the circle (T) of diameter [CF] that cuts (BC)
again in H.
Prove that (AB) and (FH) are parallel.
4° Calculate CF then CH.
5° Prove that the triangle BAF is isosceles.
6º Draw from A the parallel to the line (BF).
It cuts the line (HF) at G.
Prove that ABFG is a rhombus and specify its perimeter.
7° Prove that the triangle OBC has the same area as the
rhombus AREG

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100

i need the statement

step-by-step explanation: