The radii of the concentric circles increased by equal amounts.

Engineers calculated the sight radii for each turret to maximize coverage.

Spectroscopic measurements confirmed that the interatomic distances in the crystal lattice were about three Bohr radii.

In the lecture, the professor drew several radii vectores from the origin to illustrate the particle's motion.

The botanist measured the potato radii before recording the growth data.

When comparing Taylor series, we must compute the radii of convergence for each series to determine the intervals where the expansions are valid.

Engineers compared the radii of gyration of the different beam sections before finalizing the design.

In the plasma experiment, the measured Debye radii varied significantly with temperature.

Astronomers traced the jet to within a few Schwarzschild radii of the black hole.

Graduate students calculated hydraulic radii for multiple channel cross-sections to estimate flow resistance.