In the figure a b c and d reflect across ef to coincides with points g j i and h respectively

∠GHI = 90° and coordinates of point K will be (8, -6)

Step-by-step explanation:

The given figure ABCD is reflected across EF to coincide with the points G, J, I and H.

We have to tell the measurement of ∠GHI. After reflection image formed by G,J,I and H will be similar.

Therefore ∠GHI = 90°

Now this figure GHIJ is reflected across x-axis then we have to find the coordinates of new point G.

Since point G(8, 6) is lying in the first quadrant, when reflected across x axis the new point K lies in 4th quadrant and the coordinates of K will be (8, -6).

the answer is 375 miles

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870