Because the way that they stand and are
Measuring in light-years also allows astronomers to determine how far back in time they are viewing , Because light takes time to travel to our eyes. Everything we view during the dark in night has already been happened.
Answer:
D. 163.28mm
Explanation:
Circumference of a circle= 2πr where r is the radius
∴ 2×3.14×26= 163.48
Stalactites hang from the ceiling of a cave while stalagmites grow from the cave floor.
