Which description is true about the transformation shown? a. it is a dilation because the transformation is isometric. b. it is a dilation because the transformation is not isometric. c. it is a stretch because the transformation is isometric. d. it is a stretch because the transformation is not isometric.

the answer is b.

step-by-step explanation:

we know it is dilation because each side gets bigger by x2.

we also know that it is not a stretch because all sides get bigger.

finally, we know that it is not isometric because the numbers on the pre-image and image are different.

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet