How do you do this and what is the answer

We know opposite angles in the parallelogram is congruent:

let x to be the unknown angle:

 360=2(110)+2x

360=220+2x

140=2x

x=70

ECF is also 110 because of parallel lines and corresponding angles:

110+x+y=180

110+30+y=180

y=40

so DAE is 40

199,552.74 kg

Step-by-step explanation:

The density of ice is 917 kg/m³. The density of an object is defined as the ratio of the mass of the object to the volume of the object.

Given that the volume of the ice is 7685 cubic feet and we known that

1 m³ = 35.3147 cubic feet

Therefore 7685 cubic feet

= 7685/35.3147

= 217.614761 m³

Since Density = mass/vloume

mass = density * volume

= 917 kg/m³ * 217.614761 m³

= 199,552.7358

≈ 199,552.74 kg