Question

find rt.
r 21 s 27 t

Explanation:

Step1: Identify segment - addition postulate

By the segment - addition postulate, \(RT=RS + ST\).

Step2: Substitute given values

Given \(RS = 21\) and \(ST=27\), then \(RT=21 + 27\).

Step3: Calculate the sum

\(21+27 = 48\).

Answer:

48