The radius of Earth is 6378.1 km,
which is 2981.1 km longer than the radius of Mars.
The radius of Mars is 3397 km.
UV is a <u>perpendicular</u> <u>bisector</u> of RT. A perpendicular bisector UV is a line that does two things:
- cuts the line segment RT into two equal pieces or bisects it;
- makes a right angle with the line segment RT (is perpendicular).
Consider an arbitrary point X on the line RT that differs from S. Connect points U, V and X to form triangle UVX. Line XS will be the height and the median of the triangle UVX. This gives you that triangle UVX will be isosceles triangle with base UV.
Answer: correct choice is D
Yes you have all the correct answers.